Jeremy's 420 gal DT build

Jeremy - is it going to be wet by Christmas? I may have to take a drive over if it's up and running!

Gosh I sure hope so, however my plan was to have this entire build done by last February and we all see how well that went. LOL!!

Geez if your willing to take the trip all the way out here just to see the tank, the very least I can do is provide some Hot-N-Now burgers and send you home with a few extras. You can count on that!!

i hope those 3 motors are perfectly timed or they may go out of sink over time. you will have to pay attention to it every day. and remember those are ac motors and will not always going to start in the same direction...just like a microwave turn table(my super squirt is that way). sad thing is that you will not beable to see what way they are turning when you plug it in.

Actually only two pumps are creating the barrell roll. The third pump will turn on for 15min every hour and that is just for random flow coming from omni flex nozzels in from the top. Hopefully it won't be too much trouble to keep the two OM's timed opposite each other. I guess I won't know for sure until I get it running. I had talked with Paul from OM extensively about this build and it didn't seem to be a concern to him to coordinate the function of the two OM's to work with each other and keep them in sync. Really good thought to keep in mind though.



I think 1.5 inch will provide plenty of flow. That's what I have for my OM4 and reeflow dart closed loop. The toughest thing to control was the sand blowing in piles everywhere. I had bare glass in parts and 4-5 inch piles in other areas. Will you be able to adjust the direction of flow on your internal plumbing?

The flow concept on this tank was to create a lot of flow, but not high velocity directed in specific areas. From all that I've read and experienced, corals do best with indirect flow. By using 1.5 inch outlets, that will create a lot of high volume but low velocity flow. It will also create momentum thus further increasing the much desired indirect flow for the inverts.

The two closed loops creating the barrell roll will be set in place once everything is plumbed in, but I have a plan to ensure everything will work properly without creating a sand storm and piling the sand in the corner. Right now I very lightly glued each connection with either a little PVC glue or some GE rubber silicone. That will hopefully be enough to hold them in place to allow me to test the flow pattern and afford me the ability to twist the connection loose if I want to change it up a bit. My next step is to plumb in the pumps (they are arriving next Friday), and put in the substrate. After the substrate is in I'll put in about 4-5 inches of RO/DI water to soak the substrate and leach out any bound nutrients (primarily po4). I'll then drain all that water and fill it up entirely with RO/DI water. I'll turn the pumps on and see what happens. I've got it set up so I can easily remove entire sections of the internal plumbing to tweak an elbow in one direction or another if needed. Once I've got it set so that I'm not continually shifting the sand from one spot to another then I'll drain the tank, more securely glue the PVC connections, and begin my aquascaping. I also bought two containers of Gen-X calcium reactor media just in case I have trouble with sand being blown around in any area that I can't simply adjust the outlet to fix the problem. I'll just fill those areas with the heavier media so it won't be blown around as easily.

The third closed loop will have 8 outlets from omni flex nozzels entering in from the top. This closed loop will turn on 15 min every hour to create some random flow and taget and low flow areas. This will allow me to routinely change up the flow and target new areas by simply adjusting a nozzle direction.

Thanks everyone for tagging along and bringing up any little details that might be troublesome. It's much easier to make corrections now then it will be once my aquascaping is done and that beast is full of water!! The delay in getting the tank done has been a blessing in disguise. I've changed at least a dozen different things through the wait and the entire set up will be more efficient, creative, and quite simply much better in many ways.

One last thing, I decided to go with hammerhead gold pumps instead of darts. Since the reeflo pumps are so efficient and can easily be valved down (which will in turn draw less power) I thought I may as well max out the capabilities of the flow and valve it down if I need to. It was a bit more costly of an initial investment but in the long run I think it will be a very logical choice. (for the CL causing the random flow I stayed with the dart gold since the onmi flex nozzels will create significantly more velocity than the 1.5 inch outlets on the other CL's)

Jeremy
 
Well, I thought I'd take it easy today and only seat my bulkheads and call it a day. So many things pertaining to reefing sound so easy but are the exact opposite.

Here's a pic of the nut for each bulkhead (it's a 4.5in nut for a sched 80 1.5 inch bulkhead - pretty damned heavy duty!).

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Under the tank I have a 3/4 inch sheet of plywood with a 1/2 in sheet of extruded polystyrene and a 1/2 in sheet of expanded bead foam board. After I cut out the holes for the bulkeads here is about how much room I have to work with to get a wrench on the bulkhead nuts and tighten them.

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I tried every wrench in my garage and nothing would fit in there. I then went to menards and bought a strap wrench, the largest channell locks I could find, and several clamps with ends that looked like they might fit up inside there. Nothing would fit. The nut is simply seated too deep to get any sort of wrench on it. After all that failed, I thought I could simply go to an auto parts store and rent a large socket. When I brought in a 4.5 in nut and asked for a deepwell socket to fit it they just laughed. They laughed at me at the next two stores also.

My final option was to go to Menards and see if I could DIY a socket that large. I bought a three foot peice of 2inX3/16in carbon steel and a couple hose clamps and here's what I came up with. My very own 4.5 in deepwell socket.

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I used some electrical tape on the top edges to prevent scratching the glass and used a pry bar to turn the socket. It worked great!! I tightened the bulkheads hand tight then put my socket on and turned them another 1/4th to 1/2 turn. Just enough to squat the gaskets a bit.

Jeremy
 
Nice build.

Did u mock up the LR yet?Dying to c it i the tank.

Newbs should take note on your paitence level.
 
Nice build.

Did u mock up the LR yet?Dying to c it i the tank.

Newbs should take note on your paitence level.

Thanks!!

I mocked up the aquascaping a thousand times in my head. Then changed it all after I got the tank in place and saw how much space I had to work with. Then after I got my internal plumbing in place I changed my mind a dozen more times. I've got a very specific and sound design that I now have in my brain and the aquascaping will be nothing more than creating what I've got envisioned. My flow and internal plumbing were built around my "general" ideas for aquascaping and that is all still right on and flowing well with how the internal plumbing has turned out. Since the rock is curing right now I'm pretty limited in actually setting it up and phsically creating anything (few weeks to go).

If it weren't for the slight delay I might have rushed this build and in the end would have wanted to have done things differently. The mandatory delay has really been helpful in retrospect. Not sure if I'd have that much self control if I had all the parts and $ when I wanted it. LOL!!

Lot's more interesting stuff to come. I'll be incoorporating all kinds of cool and unusual reefing goodies. Anything from various means of nutrient managment, automation of some husbandry, raising live food to continually feed the tank, etc.... Don't want to give out all the details just yet, but I've got some cool stuff that will be incoorporated with this system and all of it has a very specific purpose and will be working together to create a beautiful reef right in my living room. I'll be sure to explain the logic of why I do what I do so hopefully others can use my ideas just as I've used everyone elses ideas to create my current system and plan this 420. None of the stuff I plan to do with this system is anything that hasn't been done before, but there will be lots of incoorporation of various techniques of reefing all mixing together for optimal function. It'll be fun!!

Jeremy
 
Wow that picture of you holding the rock puts things in perspective. I think you're going to like bean animals design. I built a 75 with that design with 1" plumbing (not the 1.5 that was recommended) and it worked awesome.

Thanks for the update.
Jimmy
 
Looks like Ill have to stop out there sometime soon to see the progress!! If you need anything dont be afraid to ask im only 20 mins away!
 
Looks like Ill have to stop out there sometime soon to see the progress!! If you need anything dont be afraid to ask im only 20 mins away!

Time Tony!!! I need more time in the day!!!! Between the fun and enjoyment with the new baby, getting firewood ready for the winter, working full time, and spending every other last waking second working on some aspect of the tank I could really get a lot more done if there were 48 hrs a day instead of 24!! After my first daughter was born I gained a new appreciation for sleeping. When she was an infant I learned to sleep when she slept so I could keep up with her when she was awake. Sleep became quite a priority after that little girl was born. Now with a 4yr old and an infant I've just learned to go without sleep if I want any time to work on my projects. Now I find myself getting up early and going to sleep late so I can spend more time with my family or with my tank. Funny how priorities change over time.



Hoping to get some of the plumbing started under the tank tomorrow. Hopefully I'll get all the valves in place to be ready for the arrival of the pumps on Friday.

Thanks for tagging along everyone!!

Jeremy
 
i know how u feel!!! 40 work week..wife that works 3rd shift...7 year old....2 year old......my sleep comes after 1 am almost every night...between 9:30 and 1 is my time to work on the many things i have going on right now like my new tank build ....well not so new but u know what i mean:)
Time Tony!!! I need more time in the day!!!! Between the fun and enjoyment with the new baby, getting firewood ready for the winter, working full time, and spending every other last waking second working on some aspect of the tank I could really get a lot more done if there were 48 hrs a day instead of 24!! After my first daughter was born I gained a new appreciation for sleeping. When she was an infant I learned to sleep when she slept so I could keep up with her when she was awake. Sleep became quite a priority after that little girl was born. Now with a 4yr old and an infant I've just learned to go without sleep if I want any time to work on my projects. Now I find myself getting up early and going to sleep late so I can spend more time with my family or with my tank. Funny how priorities change over time.



Hoping to get some of the plumbing started under the tank tomorrow. Hopefully I'll get all the valves in place to be ready for the arrival of the pumps on Friday.

Thanks for tagging along everyone!!

Jeremy
 
Well today instead of working on plumbing I decided to take all my rock out of the curing bin to do an entire water change and scrub each and every rock. That was just a little bit of work!! I'm a bit surprised on how much crud there is on this rock. There is really a lot of sponges and stuff that seems slow to breakdown and come off the rock. Pump delivery is a bit delayed so I've got more time to work with I guess.

I've been using water mixed at a salinity of 30 PPT in an attempt to limit how much salt I'm using for just curing the rock. Anyone know what the limit is on how low of a salinity I can use for curing the rock?? I'm sure there has to be a limit to the salinity to allow the skimmer to function properly. The good thing is that since the rock was dried to begin with I don't need to keep a proper salinity to maintain any life on the rock. I do have my macroalgae bin plumbed in to grow some chaeto to help manage the nutrients. I guess that's something that also needs to be considered when monkeying with the salinity to save on salt mix.

Any suggestions are very much welcomed!!

Jeremy
 
Looking Very Good Jeremy! My tank build that I just partially finished took over a year and thats not even a 420 gallon TANK!!!!! However, like you I did change up some things and am glad I did. Now that the tank is up and running I still find myself tweaking things via the filtration aspect of it!! I am very curious on your Live Food thoughts though!!! Feel free to PM me!!! :D

Looking Good!

Eric
 
Thanks Eric. I think, no matter how long a person contemplates their set up and how they're going to build it, there will always be changes we will want to make. I fortunatley came across some really convenient changes that will make my system more efficient, less costly, and ultimately less work.

Jeremy
 
Jeremy, just getting caught up on my subscribed threads and wondered if you ever came up with an answer to your rock curing salinity question. I'd imagine 1.021 would be good enough to support bacteria growth, assuming you are feeding the rock once a week.

I love your solution to tightening the bulkhead nut. I've been trying to figure out a way for years that works around any extended plumbing, and have a couple of ideas that might work if I pursued them with a die-cast manufacturer. Your method was a great DIY!
 
Jeremy - I was hoping to make the drive over when I'm home for Christmas but that's not gonna pan out. Puts a crimp in thing only having one car (since mine will be in CA) - plus I wasn't thinking that the Christmas weekend would be the only actual weekend that I'll be home. Damn...I miss out on checking out your tank AND on some Hot-N-Now!
 
Jeremy, just getting caught up on my subscribed threads and wondered if you ever came up with an answer to your rock curing salinity question. I'd imagine 1.021 would be good enough to support bacteria growth, assuming you are feeding the rock once a week.

I love your solution to tightening the bulkhead nut. I've been trying to figure out a way for years that works around any extended plumbing, and have a couple of ideas that might work if I pursued them with a die-cast manufacturer. Your method was a great DIY!

Thanks Marc!!! I hadn't come to a conclusion on the curing/salinity question so I had just kept running it around 30 PPT. It seems to be working OK. Really appreciate you coming back around to answer my question about the salinity.

My DIY 4.5 inch deepwell socket worked like a charm. Glad you liked the idea. My first thought was to have my wifes uncle make a custom socket by welding some 3/16th in steel together, but my little creation worked pretty well. I'll be the first to admit I'm not a top-notch DIY'er and most of what I'm able to create turns out nothing like what I envision in my head. This idea, however, turned out great and only took about $10 and 20 minutes to make.

I have incoorporated my large chaeto grow out tank into the system a little early to help remove some of the organic waste as the rock cures. The rock is pretty clean at this point but the chaeto is still growing fast. I figure once the chaeto stops growing that'll be a good indication the the nutrients are exhausted (once I get to that point I'll remove the chaeto to prevent any die off which will release nutrients back in). I also have some cyano growing in the lit chaeto tank in addition to a significant diatom bloom. There are a lot of dead sponges on the rock so I'm assuming the silicates being released are fueling the diatom growth. About twice a week I disconnet the input into the chaeto tank, stir up all the diatoms that are growing on the chaeto and tank walls, and then filter all the water by pumping the water through a 100 micron filter sock for about an hour. I don't think a 100 micron filter will capture all the diatoms, but it seems to clear the water pretty well and the process is yet another means of nutrient export. I also prune the chaeto and brush off/stir up the cayno during that time so I can get that filtered out as well. With that bit of basic life diversity I guess I can assume the salinity is sufficient. In reality all I need it to do is to make my skimmer function properly and grow the algae and bacteria for nutrient export.

Another concept I added to my rock curing process was dosing a carbon source and some zeobak to increase bacterial growth. I happened to have some start2 and some zeoback left over from when I was using the zeo process on my main tank. This was a great way speed up the cycling process and use up some old products that would have just gone to waste. I've since stopped dosing the two products because the rock is looking so clean. I'm not sure if it's even possible, but I didn't want any of the carbon source to get built up and unused. I have decided that I will definately not be using any sort of bacterial proliferation in my 420 and I don't want any excessive carbon sources built up into the rock and creating any unwanted bacterial growth once I get the tank going.


Jeremy - I was hoping to make the drive over when I'm home for Christmas but that's not gonna pan out. Puts a crimp in thing only having one car (since mine will be in CA) - plus I wasn't thinking that the Christmas weekend would be the only actual weekend that I'll be home. Damn...I miss out on checking out your tank AND on some Hot-N-Now!

NP Mike. Since there has been a SIGNIFICANT delay in getting my pumps delivered I might not even have water in the tank by Christmas. Covering the PVC with rock rubble and getting my aquascaping done just right will require it to be done without water in the tank and it will be pretty time consuming.

Jeremy
 
Oh gosh, I 've got so many updates. The trouble is I've been quite limited with my time so instead of taking the time to post updates as I go I've just been continuing to work (it's either use the time for doing the work or use the time for posting updates). I did take pics along the way and will soon have time to get everyone updates once the tank is cycling and I'm waiting for it to get ready for livestock.

Thanks for the interest!

Things are really coming along great and it's turning out spectacular!

Within the next few weeks I'll have time to post detailed updates on what I've done, why I've done it that way, and how well my concepts have worked.

Jeremy
 
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