Charles,
I'll see if I can pick out your questions and tackle them in order......
chask said:
My problem is the contractor needs to have a layout for the room next to the tank. This is hard to do without the some help from the people who make the filter. It is starting to hold up construction.
My suggestion would be to just have him build a generic room directly behind the wall where you plan to locate the tank. Have him include a raised concrete pad of perhaps 3-4ââ"šÂ¬Ã‚ or so to accomodate the tank. Put a floor drain in the center, a stainless sink and small counter top in one corner and coat the floor and about 3ââ"šÂ¬Ã¢"žÂ¢ up the walls with an epoxy/sand industrial floor coating so you can just hose everything down. Make sure you get lotââ"šÂ¬Ã¢"žÂ¢s of electrical outlets (with water resistant covers) and save some space for your saltwater reservoir, RO reservoir, a small refrigerator to hold fish food and beer and a couch for when your wife inadvertantly gets a look at the checkbook
Oh... and donââ"šÂ¬Ã¢"žÂ¢t forget some kind of airflow to remove the humidity and cool the tank.
The plan has grown from around 350-400 gallons up to around 1000-1100 gallons on the low end. I have the room to go to around 1800-1900 if I get the height up to 4.5 feet and increase the length. I am concerned about working on something over 3-3.5 feet tall and 4-4.5 feet deep (front to back - hope I am using deep and tall correctly). I have room to go perhaps 5 feet deep and 6 feet tall if I recess the lights and around 15 feet long (yes it is a good size room). I know that once it's built in I will not redo it to make it any bigger; sort of now or never.
Iââ"šÂ¬Ã¢"žÂ¢d strongly suggest keeping it under 1,000 gals so itââ"šÂ¬Ã¢"žÂ¢s still reasonably manageable. Chris (H20ENG) and myself have a good deal of experiece working on big (really big) tanks and yes, they are fun to look at, but they can be pretty overwhelming to keep running 24/7. Once the novelty wears off you still need to keep the thing going... that includes when you are out of town, stuck on a project at work, down with the flu, or just plain burned out and need a break. There will be unforseen problems/emergencies, sleepless nights, not to mention a butt load of money. 750-800 gals would be the maximum size I would consider doing if I ever went bigger.
How about 2 tanks built into the wall? Say... 500 gals each. a couple 6 footers side by side would look sweet. Youââ"šÂ¬Ã¢"žÂ¢d also get more flexibility with what you could keep. Reef in one side, a predator tank for the other.
My current thought is 12' (long) x 4.5' (front to back) x 3-3.5' (tall) set up as a lagoon to reef's edge environment with a small patch reef or two out in the middle. (I just started reading about salt a couple of weeks ago - I hope I have the terms right) I have done plants and it seems that the front to back and height dimensions would allow a lot of flexibility in design - a couple of swim through caves (small and one good sized), an arch or two, a couple of mounds out in the middle growing up to or near the surface. My hope is to have plently of room for corals to really grow out, plenty of room for a couple of schools of small fish to school in and around the various rock/coral structures, and the scale of small fish against the rock structures giving the illusion of a much larger patch of lagoon. It will be set up with one side and end open to the main room and the other long side open to the equipment room. Hopefully I'll end up with a lot of good viewing angles in both rooms. Looking forward to long periods of stress reduction viewing.
Have you seen Steve Weastââ"šÂ¬Ã¢"žÂ¢s tank?
www.oregonreef.com
I think he did a great job in picking a nicely shaped and balanced tank and aquascaping accordingly. Iââ"šÂ¬Ã¢"žÂ¢m not a big fan of the stacked rock wall .....you see it day after day and after 17 years Iââ"šÂ¬Ã¢"žÂ¢m pretty well done with that and ready to move on. I really like the Japanese tanks - especially the way they keep the rock height low and make the reef a forced perspective focal point of the bigger picture rather than an ââ"šÂ¬Ã…"œin your face, overwhelming, use every last bit of spaceââ"šÂ¬Ã‚ kind of way.
If you do go with a long tank... like 12ââ"šÂ¬Ã¢"žÂ¢... may I suggest multiple viewing windows along the wall. You could still do different aquascapings like you mentioned, but put a framed window around each area to ââ"šÂ¬Ã…"œshowcaseââ"šÂ¬Ã‚ it. Then, when you looked in youââ"šÂ¬Ã¢"žÂ¢d get the illusion of the tank continuing off into the distance. Youââ"šÂ¬Ã¢"žÂ¢d also get the added effect of the fish passing by each window as they traveled the full length of the tank. At least thatââ"šÂ¬Ã¢"žÂ¢s the way Iââ"šÂ¬Ã¢"žÂ¢d do it if I had a really long tank.
This brings up one of my concerns that I was going to post about in another area but I am not sure where. Is it tough to work on something that tall and deep or do people mostly do this for fish only tanks? Will I have to get in it for the corals? I'm leaning heavily in the DSB direction because of my planted freshwater experience but because of all the re-planting and trimming that is required for FW plants I would never think about anything over 30 inches or so tall and about the same to maybe 3 feet deep. I see a lot of salt tanks that are really tall. How do they work on them? Please do not go into it here (way off topic) but if anyone has an idea where this should go or wants to PM me I would appreciate the input.
You canââ"šÂ¬Ã¢"žÂ¢t reach the bottom in anything over 24ââ"šÂ¬Ã‚ so a 30ââ"šÂ¬Ã‚ÂH tank will require tongs or similar for general maintenance and what not. But I think 30ââ"šÂ¬Ã‚ is the minimum for a nice open viewing area. 36ââ"šÂ¬Ã‚ is probably better. Youââ"šÂ¬Ã¢"žÂ¢ll be lookng at 400w MHââ"šÂ¬Ã¢"žÂ¢s for that kind of height but if you are going to go long I think youââ"šÂ¬Ã¢"žÂ¢re going to need to offset that with some decent height or itââ"šÂ¬Ã¢"žÂ¢s going to look severely out of proportion. Also, depth wise, the bigger the better.... way more flexibility. So 36ââ"šÂ¬Ã‚ at the minimum with 48ââ"šÂ¬Ã‚ being better still. Thatââ"šÂ¬Ã¢"žÂ¢s one of the reasons I like Steveââ"šÂ¬Ã¢"žÂ¢s tank so much - his depth allows him to do a lot of creative rockwork and you really can get the 3D effect working for you. Otherwise, itââ"šÂ¬Ã¢"žÂ¢s back to the sloping rock wall and that 2D look.
I recall seeing a few postings where you briefly mentioned DSB's with what I took to be a not too favorable point of view. My first thought would be that any additional natural filtration and processing of waste (completing the cycle sort of thing) would be beneficial. Particularly if it meant the creation of a large bed of natural food.
With reagrd to DSBââ"šÂ¬Ã¢"žÂ¢s I donââ"šÂ¬Ã¢"žÂ¢t think they would be much of a benefit to me at this stage of the game. I was already playing around with algae filtration when they started to become popular.
I do have several reservations about them but I have not set one up, nor do I plan to anytime in the future, so what I think really doesnââ"šÂ¬Ã¢"žÂ¢t matter. But, I will say that for some folks, especially those just starting out, they might be a viable option.
I also recall that you are adding food to the tank. Do you think that a DSB and/or refugium might be capable of producing anough natural food that the tank would not require auxilliary feeding?
To some extent yes, but youââ"šÂ¬Ã¢"žÂ¢ll prbably get more help from your live rock. Also, the larger the tank the more self-sustaining it becomes. I would guess a 750+ gallon tank could produce enough food to keep fish reasonably well fed with only minimal feedings from you. But this will be dependant upon how big of a fish load you have.
Like you I get busy and sometimes do not have the time or want to go somewhere for a vacation.
Exactly the reason I am suggesting you scale back just a bit on your tank size. A reef tank is definitely way more work than freshwater planted and as you increase your size so will you increase your workload.
I know in freshwater you can leave one alone for a week or so (heavily fed just before of course) without any harm. I am sure that salt water fish are similarly capable of feast/famine (long as it is only occasionally) but I have not seen anything comparable about corals and some of the other critters.
Yes, to some degree they are capable of being left to their own for short periods of time. My feeding regime for my fish is usally a couple 2-3 days on, with a break followed by another 2 or 3. Averages out to about 5 feedings and 2 fasting days a week. But itââ"šÂ¬Ã¢"žÂ¢s not the fish that you have to worry about, itââ"šÂ¬Ã¢"žÂ¢s more than likely going to be your life support that will cause the probs. Thatââ"šÂ¬Ã¢"žÂ¢s why youââ"šÂ¬Ã¢"žÂ¢ll want to keep everything as simple and low-tech as possible with as many backups and safeguards as you can engineer.
The tank needs to be able to run itself for a while. I either need it to self feed or have an auto feeder. It sounds like the Eco-Wheel is doing a lot of this, I just wonder how much and is it enough? Other postings I have seen indicate a refugium would need to be at least 25-30% of the size of the display tank to be capable of providing enough natural food for corals and fish. Any idea how much the Eco-Wheel is adding and how much more one would need to be self-sufficient?
Well, other than the occasional small tuft of algae the breaks free (quickly eaten by my herbivores) Iââ"šÂ¬Ã¢"žÂ¢m not actually seeing anything coming out of the filter. However, the lower portions of the filter as well as my 5 influent/effluent boxes are teaming with life.... mysis, copepods, worms etc., so I imagine to some extent some of that has to be finding itââ"šÂ¬Ã¢"žÂ¢s way into the main displays.
You also hinted at a change in the salt and pepper sand bed. Have you seen Ron Shimek's articles (Ask Dr. Ron) on DSB's and sand size? Inland Aquatics also seems to advocate something similar (a mix of various grain sizes) but I guess they are doing the DSB thing too.
Iââ"šÂ¬Ã¢"žÂ¢ve read some of them. When it comes to what Dr. Ron has to say.... well, Iââ"šÂ¬Ã¢"žÂ¢ll just say that I think heââ"šÂ¬Ã¢"žÂ¢s a great invertebrate biologist and has helped a lot of people on this board. Other than that, I donââ"šÂ¬Ã¢"žÂ¢t frequent his forum very often. Itââ"šÂ¬Ã¢"žÂ¢s the people who have his picture up on their walls and can quote him from memory that worry me
Water Changes and Color:
Are you doing the water changes to get the typical ATS filter color out, for export of bad stuff, or a little of both?
My water changes are strictly for waste export and trace element replacement. I use NSW which runs about .50/gal out here. Thatââ"šÂ¬Ã¢"žÂ¢s cheap insurance IMO, and the cost of a 25 gal weekly or bi-weekly water change is chump change compared to what I have invested or at stake. I look at it this way - I can spend the money and time on mixing salt and purchasing additives or just zip down the street and fill up some jugs and be done with it.
With regard to dissolved organics and/or any yellowing compounds I think that is something that is way over exaggerated. I hear a lot of people slamming ATS/non skimmed tanks as looking dingy and having yellow water, but I wonder just how many they have actually seen. Not that Iââ"šÂ¬Ã¢"žÂ¢ve had all that many people come see my tank in person, but those that have havenââ"šÂ¬Ã¢"žÂ¢t complained in the slightest about the color of my water. Probably because it pretty much looks... well, just like regular water.
I know carbon is not a good idea re: removing essential nutrients but in their first reef book Delbeek and Splung mentioned that a bag of GAC under a rock next to an air stone would keep the color clear without much nutrient removal. Do you find the need for something extra with the Eco-Wheel?
I think carbon is a good thing, and do run it on occasion. Have I noticed a diff with or without it? No, not really. So why am I running carbon? Ahhh, you got me on that one??? Guess cuz most everyone else is and old habits are hard to break.
Are you doing any additional mechanical filtration at all?
No. But about once a month I blast everything with a powerhead (including sand) and let a hang on tank cannister with a pleated cartridge run overnight to remove all the crud. That seems to be working well.
Also, you noted a buld up of detritus in the Eco-Wheel. I would normally think that leaving the detritus in the filter long term is not the best idea. If there isn't some critter or bacteria working on it isn't that stuff just adding undesirable checmicals back into the tank?
Perhaps, but itââ"šÂ¬Ã¢"žÂ¢s loaded with life and doesnââ"šÂ¬Ã¢"žÂ¢t seem to accumulate much past about 1/8ââ"šÂ¬Ã‚ so Iââ"šÂ¬Ã¢"žÂ¢ve just learned to live with it.
Do you find the flow rate (1200 gph) enough?
Yes, much to my amazement. My past experience keeps telling me that I need more, but my eyes are telling me everything is fine. Tis a tortured soul I am, I know. I think the pulsing and surging has a lot to do with it. Right now I have about a dozen good sized SPS colonies and another half dozen frags or small colonies and all are doing quite nicely. Iââ"šÂ¬Ã¢"žÂ¢m sure I could probably do better if I really blasted them with more flow, but for what purpose? Iââ"šÂ¬Ã¢"žÂ¢ve already had to either frag or relocate some corals outright. I donââ"šÂ¬Ã¢"žÂ¢t really have a need to supercharge my growth because Iââ"šÂ¬Ã¢"žÂ¢m pretty much out of room as it is.
I noted that you have modified the air lift but there was no mention of the increase in flow, just that it did.
Well, at the time I didnââ"šÂ¬Ã¢"žÂ¢t have a 3rd hand to hold buckets under 3 diffferent influent boxes so I could measure GPH. I had to guesstimate and figured a 10-15% improvement over A.E.ââ"šÂ¬Ã¢"žÂ¢s design.
I sort of feel like it would be nice to have an occasional "storm" to stir things up, clean junk off stuff it shouldn't be on and move it to the filter. Not thinking about a hurricane simulation, just a little extra turbulence. Seens like it would help a lot. I also wonder about getting sufficient circulation in a tank as big as I am planning. I guess that mulitple air lifts with multiple inflows and overflows around the tank would help or alleviate this. Kind of hard to know for sure without help from AE.
I think thatââ"šÂ¬Ã¢"žÂ¢s a good line of thought. Donââ"šÂ¬Ã¢"žÂ¢t worry about A.E. you can work around them. I know that seems like a difficult concept at this stage of the game, but now that I have run one I really donââ"šÂ¬Ã¢"žÂ¢t have any need to deal with them beyond an occasional chit-chat with Chris.
Whatever I do it will be with some sort of "pump" that is not harmful to all that stuff I want growing in there. Do you have any plans for extra water circulation or surge devices?
No, not at the present, but itââ"šÂ¬Ã¢"žÂ¢s in the back of my mind eating away at me like a slow festering cancer. Iââ"šÂ¬Ã¢"žÂ¢m weird that way... I frequently lay awake in bed at night worrying about fixing things that arenââ"šÂ¬Ã¢"žÂ¢t broke
I kind of like the idea of not controlling everything but as I mentioned beore I get busy. And it seems to me that the goal of products like the Eco-Wheel is moving towards a self-sustaining system. Bourneman's boook about corals mentions on the inside back cover he has a 500 gallon closed system without water changes. There are some thing that need to be done daily and occasionally they won't. I am primarily thinking of Kalkwasser for top up, any nutrient dosing, auto feeding, and perhaps auto water changes. There is also temperature and lighting control. If I get something to handle all of that, a couple more probes and I could have the "brains" watch for problems and bring them to my attention. Perhaps I could start looking for something bad before it gets too far out of hand. Being a newbie to salt I am sure I have a learning curve ahead of me and could use all the help I can get.
Look into a good tank controller like an Octopus or similar. They usually have a telephone interface than can set off a pager if a certain set of parameters fall out of line (like temp or pH).
Also remeber that I am used to keeping plants that cost 25-50 cents each that I can grow to double size within a few weeks. I've checked prices on some of therse corals. Wow! I could have filled a tank this size with plants for what a couple of those little finger sized frags cost. But they do look good!!!
Couple choices here.... start playing the lottery.... or join your local reef club and bribe everyone with copious amounts of beer and food in return for frags
You mentioned in your tear down that there was a scratch or two on the bearings of the wheel. Can you service them? Is there anything besides algae removal, changing burnt out bulbs and keeping critters out of the flow path required to keep this filter working correctly?
Nope! Once a week I harvest the algae, wipe down the front acrylic on the filter and lens on the light fixture and put the lid back on. Takes about 30 minutes. The bearings are really just tefelon axels in a recessed socket. Theyââ"šÂ¬Ã¢"žÂ¢re quite durable and those couple of scratches appear to be no big deal at all.
Regarding the hand held power washer/vacuum, I have often thought of one ot these too. The pull out shelf idea is a good one. I will remember that.
I should have some pics up in a couple weeks - Iââ"šÂ¬Ã¢"žÂ¢m waiting on some parts. Itââ"šÂ¬Ã¢"žÂ¢s pretty straightforward.... a couple hoses that will hang on the side of the tank like a normal cannister filter with a 3rd line for the pressure washer so I can do my cleaning at the same time. The only difference between this one and something like a Magnum is itââ"šÂ¬Ã¢"žÂ¢s bigger, beefier, and will flow like 1000gph instead of 200gph.
BTW - do you do any setup work on the outside? PM me if you would think about it.
LOL.... youââ"šÂ¬Ã¢"žÂ¢ve got a real sense of humor there Charles
Brett