Reef Ceramics

<a href=showthread.php?s=&postid=10452347#post10452347 target=_blank>Originally posted</a> by Insane Reefer
How much do you sell those for, lol.
Plumbing is not something I'm good at...

I can give you some more detailed instructions if it helps.

A 4" overflow may sound small, but that's just the trade name. It's a nominal 4". The actual outside diameter is 5.25", but the circumference is 18". An 18" overflow is quite desirable for a 65 gallon tank, especially if it's invisible.

I lost half of the surface area by locating it at the end of the tank, buried in cement, but my flow-through is only about 600 GPH. I typically locate them in the centre of the tank on a standpipe running through the bottom of the tank. I've also run them at the back of tanks with a couple of 45 degree elbows to bring the water back.

This one is freestanding, surrounded by live rock and drains a little over 1000 GPH per hour.
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Here it is after 6 months, covered in coraline algae. You can see the 1/4" gap teeth overflow once they get a little slime.

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This one is also freestanding and drains about the same amount. The only sound is a gentle trickle as the water drops 2" into the centre drain. This however, can be rectified by raising the centre drain for a smoother 3/4" drop.

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Standard acrylic overflows aren't bad, but they aren't easily adapted to existing tanks. Acrylic doesn't bond well to glass, so you should always use a standpipe as a fail-safe. If the box leaks (within the tank) the drain point remains at the top of the PVC standpipe, and not at the point that the box leaks (in the event of the pump turning off). The wasted space in an acrylic overflow box is an excellent place to grow aiptasia, majano, xenia, or yellow polyps for biological/mechanical filtration (assimilation). They quickly remove excess food that bypasses the display tank. This tank has aiptasia in the two overflows with only diffused light.

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This overflow is 4' high and is being used as a RDSB (remote deep sand bed). I was able to fit 15 gallons of sand in there. The water drains too quickly for detritus to settle, it's dark, and it's certainly deep enough. This one has three 1.5" drains, with the same Stockman modification. The water only falls an inch, so it's dead silent. The tube in the foreground is a breather/feeder/dissolved oxygen sampling access point.

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You can see it at the far right, before the cabinetry was installed.

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mr.wilson,

all i can say is wow,,,, you did a beautiful job. How deep is that last tank and what kind of ME lights does it have over it?
 
<a href=showthread.php?s=&postid=10470457#post10470457 target=_blank>Originally posted</a> by jman77
mr.wilson,

all i can say is wow,,,, you did a beautiful job. How deep is that last tank and what kind of ME lights does it have over it?

The last tank is 4' deep and 8' long, so your viewing a full (4x8) sheet. I was worried about the depth, but whether it's 30" or 48, you need to use tools (tongs, grabbers, scrapers etc.) for access.

I climbed up one ladder to get on the tank, then down another to get in. It's much easier when you can work sitting in the tank. Once it started to fill with rocks, I had to hang upside-down from the top to cement the rock-work in place. i think I still have bruises on my ribs...or are they from the last project?

I used a 2x3 board to smooth out the cement work in the 36x12x36 tank, and the pipes were coated outside of the tank. I thought about prefab panels made of eggcrate (eggcrete:)) tacked on the ends with silicone, but they wouldn't be able to make the turn as I fit them through the 2 small access holes on the lid. It may have been easier to do if the tank was glass, but eurobracing can be just as bad as acrylic lids.

The lighting is three Aqua-Medic 400 watt, 20,000K mogul socket pendants. I affixed two 12" blue LED strips onto each fixture (one on each side of the MHL bulb). Each MHL has its' own timer, and they are offset by 30 minutes from each other for dawn & dusk. The light to the "east" comes on first for a sunrise effect, then the middle, then the "west" last. At night it mimics the sun setting in the west, as the lights go off in sequence. I don't know how much, if any, significance this system makes for fish and invertebrates, but it's fun to watch.

It's hard to light an 8' tank with three fixtures. I had purchased 4 for the job, but it looked good with just three. I find that it looks more dramatic with the slight ray pattern of light provide by fewer bulbs. The fourth light would add heating and electrical head-aches as well.

The aquarium was completely closed in with cabinetry, so I installed a cooling thermostat and a 450 CFM exhaust fan, vented to outside. A 15" fan was positioned at the opposing end of the tank to provide evaporative cooling and to keep the hot air from the fixtures flowing toward the exhaust fan.

The reflectors don't spread the light as wide as some models, but I find that many reflectors spread the light too wide. It's counter-productive to illuminate the front viewing walls, as algae proliferates and you get blinded when you look at the tank. This tank is only 30" wide, with a relatively narrow footprint for the live rock. The light has to travel 5' down by the time it his the substrate, so the ray of light offers good coverage.

I oriented the fixtures so the reflectors cast the light with the length of the tank, rather than with the width. Most aquarists orient the fixture from front to back, causing shadows between fixtures and over-illuminating the viewing panels. Then they wonder why algae grows on the glass daily. Front to back orientation also causes slightly more shadows as the light is traveling toward the viewer.

I positioned the middle pendant a little higher to spread the light a little better, and maximize overlap. As the light overlaps it continues to illuminate the other parts of the aquarium, rather than flooding into the room, as it would with traditional front to back orientation. The other reason I raised it was to assure that it doesn't overheat the acrylic centre brace in the one piece lid. I eventually lowered it more as I became confident that it wouldn't melt the tank.

In the end you get a variety of zones, from high light to diffused. The corals were located according to their demand for light and flow, just as you would get on a natural reef.
 
I was searching for the rock recipe and happened across your thread. I've seen much LR mixed with Man Made rock in tanks & could not tell the difference. My tank is two+ years old & now I'm wanting to cover the back wall with a man made rock & create Tonga branch to form branches for holding LR. Anyway, I'm surprised no one addressed your concern over aptasia which is why I'm writing. When my tank was first setup I added 4 peppermint shrimp. I have no aptasia even though the peppermints are long gone. I'm thinking that my (pain in the) wrasse ate them. Try some peppermints, they are cheap & should do a great job. Larger blooms can be eradicated by a good Copperband Butterfly. Here in Denver, Colorado we have one that is regularly posted and he travels to the next outbreak to do the job. Good luck with your rock.
 
Mr. Wilson, I have a question: my plan is to form one or two concrete pillars in a mold to make a stand to hold a 20 gallon tank. In the DIY rock thread we always discuss rock for in tank, but out of tank I don't know what consistency to use.What ratio of ingrediants should I use in the concrete? I was thinking 50% portland number 1 and 50% OC, can you give me some advice on what size one or two pillars would need to be?

I would like to have two narrow pillars but I don't want to make them so narrow that they won't support the weight of the aquarium. Also, how long should the pillars cure before they can be expected to support weight?
 
<a href=showthread.php?s=&postid=10574598#post10574598 target=_blank>Originally posted</a> by mmm55645
Mr. Wilson, I have a question: my plan is to form one or two concrete pillars in a mold to make a stand to hold a 20 gallon tank. In the DIY rock thread we always discuss rock for in tank, but out of tank I don't know what consistency to use.What ratio of ingrediants should I use in the concrete? I was thinking 50% portland number 1 and 50% OC, can you give me some advice on what size one or two pillars would need to be?

I would like to have two narrow pillars but I don't want to make them so narrow that they won't support the weight of the aquarium. Also, how long should the pillars cure before they can be expected to support weight?

It sounds like the pillars will be relatively small if they will both fit under a 20 gallon tank. You can buy a form for a column and use it for that purpose. Your other option is to buy or build two pillars and coat them with a faux coral treatment. Living Color makes aquarium stands with a similar coating/facade. http://www.livingcolor.com/pop/large_image.cfm?src=img/aquariums/gallery/residential/2_lg.jpg

For building purposes, the cement mix needs to be stronger with much more aggregate. and less portland. A mix of 3 parts sand, one part portland, and one part Seal Bond (plasticizer) would be suitable. You may want to insert one or more 1" PVC pipes in the centre of it, running up and down to act as rebar, as well as a conduit for an electrical line or plumbing.

How do you plan on tying the two pillars together for structural integrity?

Here are some updated pictures of the tank I posted earlier. Just waiting for the cabinetry to be installed around it.

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If you're looking at alternative materials for a small tank stand, with an organic look, you might like this one. It was my daughters 2nd birthday last week so I got her a 24 gallon AquaPod.

I realized when I got it home, it didn't fit the space I had in mind. I was able to throw this together with stuff I had lying around in a couple of hours (aluminum profiles, fibreglass dimensional lumber, and a thick piece of slate). I roughed up the edges of the slate to make it look more natural. A couple of logs (with or without bark) might make interesting, natural legs.

You could find some calcareous flagstone (for a table top) and silicone it to two cement pillars. Just be careful or it might look too much like Stone Enge.

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Can somebody clarify this for me: If the powerhead is covered by Reef Ceramics or cement-based mix, how remove it for a regular cleaning and how are the power cords hidden?
Thank you.
 
<a href=showthread.php?s=&postid=10665983#post10665983 target=_blank>Originally posted</a> by dendro982
Can somebody clarify this for me: If the powerhead is covered by Reef Ceramics or cement-based mix, how remove it for a regular cleaning and how are the power cords hidden?
Thank you.

I would just cover the top part of the powerhead and leave the impeller shroud as is. Once it gets covered in coraline algae it will blend in anyway.

You could cover the impeller shroud in a thin layer of portland only (for a better bond), and just live with the fact that parts of it will chip off when you service it.

I wouldn't cover the cord with a cement product, as it is caustic and may degrade the cord. Salt water is tough on cords as it is, causing them to go stiff in a short period of time. I think if UL knew powerheads were being used in saltwater, they would require silicone power cords for safety reasons. I can't believe it's one of the only electrical devices used on an aquarium that doesn't require a ground, while it's the most likely device to short-out and in the most dangerous position.

You could cover the power cord with a piece of flexible PVC hose and cover the hose with a mixture of epoxy adhesive and sand. Apply the epoxy and sprinkle on the sand. Throw in some silver sparkles for a crazy craft effect. :)

Your other option is to make a box out of a tupperware food container (dollar store) to hold the powerhead and cover the box to make it look like a rock. This way the box can be re-used when the powerhead dies.
 
mr wilson- Id like to know if this idea will work and what are the negatives about it?
I want to get a plastice grill and put down black foam them stick dead live rock (small rubble) into the foam to make a live rock back ground. It would be shaped around my overflow so it would be free standing against the back glass. Is this possible and

what do you think of this technique?


cyanobacteria, dinoflagellates, and diatoms- Im really not sure what these are but im guessing i dont want them.
 
Sideline question about the tanks, shown in this thread, Reef Ceramics and see-trough shortcrete tanks.

They give impression of open and clean space.

I just finished reaquascaping with recommended amount of LR, and my tank looks like a dump (what is the word for stone dump - quarry?). Everything is filled by rock.

Where are you keeping your other rock or biomedia - in the sump?
Thanks.
 
<a href=showthread.php?s=&postid=11126647#post11126647 target=_blank>Originally posted</a> by dendro982
Sideline question about the tanks, shown in this thread, Reef Ceramics and see-trough shortcrete tanks.

They give impression of open and clean space.

I just finished reaquascaping with recommended amount of LR, and my tank looks like a dump (what is the word for stone dump - quarry?). Everything is filled by rock.

Where are you keeping your other rock or biomedia - in the sump?
Thanks.

It depends on what kind of tank you're aquascaping. If it's one of your nano tanks listed in your signature, then they need 2 lbs per gallon. If it's over 50 gallons, then you only need 1 lbs per gallon, in my opinion.

The need for nitrification is dictated by the bioload, not the volume of water. As a general rule, nitrifying bacteria need a certain amount (critical mass) of rock to establish a stable colony. Any additional rock (sites) will not increase the colony, just the amount of real estate available.

There are some good aquascaping tips in this thread.
http://reefcentral.com/forums/showthread.php?s=&threadid=1001929

Here are a few of my tips, in no particular order.

- try to make it asymmetrical. Symmetry makes it look fake.
- use the small (orange size) pieces on the bottom to make a smaller footprint in the sand.
- hide plumbing etc. first, then continue with the rest of the tank.
- make sure you orient each rock with the "good side" up, while maintaining the natural strata (the position the rock was formed in) of the rock.
- don't place rocks precariously, for function (balance & stability) and aesthetic reasons.
- add substrate when the rock work is half done so the rock sits on the glass and not the sand. Otherwise fish and inverts will undermine, and collapse the structure.
- make an effort to have a low foreground, medium height mid-ground, and taller background, but don't make it too contrived or it will look fake.
- incorporate a small island to make it look bigger and more realistic.
- remember to leave room for coral to grow at the top of the tank (don't go too high).
- try not to make a straight line of uniform height, break it up with peaks and valleys.
- leave some caves for non-photosynthetic corals and cave dwelling fish.
- create stable shelves for corals. You can use a pedestal to hold it up.
- keep in mind that you want as much area as possible exposed to light. Too many overhangs or steep drop-offs will cause excess shadowing.
- use key stones to hold the reef structure together. These can double as bridges.
- Test the stability of the reef as you go. Gently push down on it from above so the rocks lock together naturally.
- when it's done, go around the base and middle and remove rocks that aren't structural. This will open up the reef and create caves without losing structural integrity.
- try to picture what kind of corals you want in each location and design around that. Create a gentle sweeping base for mushrooms on the bottom, and holes in the middle regions to hold euphylia branches for an overhang effect. Leave large areas for leather corals to fill.
- avoid the straight brick wall style at all costs.
- use the biggest rocks before you get stuck with them at the end, when they no longer fit. You can always break them into smaller pieces, but it's a shame when they traveled so far to get to your tank.
- cable ties only last a few years under water, but they can help hold it together as you build and later as corals grow and bond it together. The clear/white cable ties last longer than the black ones.
- if you use powerheads, build caves to hide them and make sure you are able to remove them every couple of months to service.
- make sure that your rock-work doesn't impede with flow from returns or powerheads.
- leave access points for closed loop intakes, so you can use a tooth brush to clean them periodically.
- incorporate large enough coral perches and nooks to avoid stinging from neighbouring corals.
- use large shells or rock rubble at the base so sand sifting fish & inverts can build permanent, stable tunnels. This will stop them from constantly digging.
- leave room between the rock-work and glass for cleaning pads and magnets.
- use the ugly rocks at the back for stability, but don't pack it tight, as you need room for fish and water flow.
- try to leave a channel across the back at the bottom for a closed loop return or powerhead, to eliminate dead spots.
- test fit pieces out of the tank before you put them in.
- don't be afraid of breaking pieces to fit.
- use only as much rock as you need. Don't feel obligated to add more rock just because you have it.
- if you don't like the way it looks, start again.
- always aquascape while the tank is empty (no water).
 
<a href=showthread.php?s=&postid=11122251#post11122251 target=_blank>Originally posted</a> by saltysteven
mr wilson- Id like to know if this idea will work and what are the negatives about it?
I want to get a plastice grill and put down black foam them stick dead live rock (small rubble) into the foam to make a live rock back ground. It would be shaped around my overflow so it would be free standing against the back glass. Is this possible and

what do you think of this technique?


cyanobacteria, dinoflagellates, and diatoms- Im really not sure what these are but im guessing i dont want them.

The aesthetics of that method are a matter of taste. There are a few examples of that method here on RC. If you do a search you can see how it will look in your tank.

I am skeptical of the longevity of spray foam. It only lasts a few years in construction applications before it gets brittle and crumbles when you touch it. My fear is that it will do the same thing in a reef tank. Corrosive salts and UV light may further degrade it.

Foam will never offer the porous, calcareous surface area that cement can. Cement can also take on a natural patina in time, while plastics and foam can only take on coraline algae.

Cement based methods are more durable and if they chip, it looks like rock on the inside. Foam will be more conspicuous when it chips.

Foam is not certified for potable water. It will leach trace amounts of toxins. These may have very little significance and cause no nuisance algae or health problems, but I personally don't think it's worth the trouble.

On the plus side, foam is very quick to apply. If you choose to proceed with the project, where eye protection and gloves, as it's very sticky and hard to get off without strong chemicals. It will get messy as you try to position the live rock pieces in the foam.

You should experiment with the foam to see how well it adheres to wet rock. I don't think it's a problem, as there are many who have used this method.

Some of the foam threads here on RC show tanks that have had good coraline coverage after a year or so. Others make it look like the back of the tank is covered in intestines. What's the name of that animal in Star Wars that Luke Skywalker cuts open to keep warm? :)
 
mr wilson- i was also worried about the foam looking ugly as i too have seen some not so good looking backgrounds with foam and yea lol it does look like that animals guts. I was hoping to cover evry inch of the foam with dry dead live rock rubble. it would be an expensive experiment since niether the foam or rock is cheap.

My other idea which is more natural is this:
I want to string the rubble rock (needle and fishing line) into many strands that would hang from top to bottom and over lap eachother. The mini pillars would be attached to a bar or pole sitting on top of the tank from left to right.

This was orginally my pillar idea but i realized it woulnt be any good for accessing the inside of the tank. but it would look cool - a tank with mini pillars all over in it.

anyway what do you think of my second idea?
(It would kind of look like those hippie beads you walk through in door ways, buy much more dense)
 
<a href=showthread.php?s=&postid=11128053#post11128053 target=_blank>Originally posted</a> by BeanAnimal
What is a Tauntaun Alex?

Remember Empire Strikes Back on Hoth? Remember when Han Solo slices open that biped riding critter to save Luke's life? That critter is a Tauntaun.

Here is Dick riding a Tauntaun...
tauntaun_dick.jpg


here is luke and han posing with a pet Tauntaun...
tauntaun.jpg
 
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