Custom 200g Cube Tank Build Thread!

lotsofgallons

In Memoriam
hello all. im planning to build a 200g cube glass tank, as well as a stand and canopy. this will be the 5th tank i have built, and the biggest. here is how it all goes down...(tight budgets inspire creativity)

The Tank:
to assemble this tank, i will salvage as much glass as i already have to save money. i used an extra 90g tank on an oak stand with a matching canopy, and a 75g with a broken bottom. i dissasembled both tanks and stripped them down to just the glass panes. i will use both long sides from each tank to construct the 4 sides of the 200 cube. i know what youre thinking, the 90 & 75 dont have the same height dimensions, the panes from the 90 are 48x22 and the panes from the 75 are 48x20. keep in mind money IS an issue here so this isnt that big of a deal to me, this 2" difference on top will be hidden by the canopy anyway, plus i will use it to my advantage when bracing the tank. so after salvaging about $400 worth of glass out of tanks i had lying around, i will have to make a trip to the glass shop for the bottom piece which measures 4ft by 4ft, but i was also able to salvage the glass i need for top bracing. the tank will measure 48" long, 48" wide, 20" tall. it will be viewable on three sides to capture the depth of the reef and give it a more natural look. here is the unassembled glass prior to cleaning/silicone removal:

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The Stand:
again, money comes into play here. instead of building a stand from scratch (have done in the past, not fun), ive decided to use the oak stand that held the 90g tank and build off of the back of it, makes sense since the front glass pane on the 200g cube is the same front piece the 90 used to have. this will be accomplished with a lot of added bracing and support to the current structure, as well as to the addition. i wont bore you with the schematics. i plan to stain the added length of the stand to match the front, as well as add wide matching cabinet door entrances on both sides to access the sump and equipment. here is a picture of the stand and canopy (before surgery):

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Equipment:
the stand will house a 55g sump, not sure how i will partition it out yet but i know i will need room for dual 1.5" overflow drain pipes, two skimmers (might as well since i have them already), a chaeto/mangrove refuge, a uv sterilizer, and a quiet one 5000 return pump. all of this equipment is coming off of my current custom built 110g system. for lighting, i will use what i already have, a 48" Current Orbit 4x96w pc, 48" Current Nova Extreme 4x54w T5, 24" Current Sunpaq Retro-Fit 2x65w pc, and 48" Coralife Aqualight 4x65w pc. JEEZ!

Stay tuned for the build! i will try to keep you updated daily with my progress, i work fast so it wont be long before this is up and running.

Here is a link to pics of my current 110g marine tank with dimensions 60x24x17 that i built (and never finished): http://s60.photobucket.com/albums/h36/ikon_photos/110%20Gallon%20Reef/
 
This should be an interesting thread to watch, anyway why not just cut off the 2" that are extra on the 48x22" panels? if you don't feel like yo could do it yourself, your glass shop would do it, and it wouldn't cost you a whole lot.
 
Very interested to see how you build this--as I'm contemplating something similar and on a budget. I really like the re-use of existing tanks! Creative!
 
made some headway on the stand today..used 3/4" plywood sheets on top and bottom of the old stand, extending outward, and used pressure treated 2x8's for inside supports, vertical and horizontal. i still have to cut out holes in the new side pieces for cabinet doors, stain the new wood, and add the trim to match the rest of the old stand..

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OMG I Am doing the same exact thing. I savaged the glass from 2 55's, but I chickened out, and I am now going to order the glass as it is too thin for peace of mind. I am doing 3 viewable sides, and the back and bottom plywood. I'll be following along. How are you going to brace it?
 
here she is! i assembled the tank today. also put in the custom overflow box that i had a local plastic shop build. i still need to stain the side panels on the stand, add the trim, put the canopy on and i have to plumb in the dual dursos before continuing with the top bracing...thriceanangel...the top braces will be three 6"x48" pieces side to side (two of which are in the picture), and two 6"x48" perpendicular to them going front to back.

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thanks!

also...hopefully someone with some knoweledge can help me here..i want to find out if i can run two return pumps from my sump based on the dimensions and specs of my overflow box.

my internal overflow box measures 16" long, and 8" deep, therefore i have a total linear measurement of 32" over which the water can flow, the teeth are 1" high and spaced 1" apart. inside the overflow box i have two 1.5" durso drains drilled through the bottom glass, dumping right into the sump.

first question: based on that info, what is my overflow rated?

now instead of running a lot of visible powerheads in the tank, id rather use two return pumps in the sump, each one will have 3 pipe exits into the tank.

after plugging my quiet one 5000 pump into the head loss calc with 3 pipe exits and all of the twists and turns i will use to plumb them, i come up with a total of 725 gph @ 1" piping.

will i be able to run two pumps like the one above for a total of approx. 1500 gph return with my current overflow setup?
 
Originally posted</a> by lotsofgallons
my internal overflow box measures 16" long, and 8" deep, therefore i have a total linear measurement of 32" over which the water can flow, the teeth are 1" high and spaced 1" apart. inside the overflow box i have two 1.5" durso drains drilled through the bottom glass, dumping right into the sump.

first question: based on that info, what is my overflow rated?
Off hand guess; little over 2500gph max flow capacity, maybe 1800gph or so nominal.


after plugging my quiet one 5000 pump into the head loss calc with 3 pipe exits and all of the twists and turns i will use to plumb them, i come up with a total of 725 gph @ 1" piping.

will i be able to run two pumps like the one above for a total of approx. 1500 gph return with my current overflow setup?
Should do it easily with no problem.

HTH,
James
 
If you find you do not have enough flow, you could add a closed loop, but you would need a little space between the wall and the tank to run plumbing, or drill two more holes in the tank.
 
i plumbed the dursos today but left the pipe extensions off at the bottom so i can pull out the sump during setup..this 30g sump has one chamber for the drains/skimmer/other equip and another for the refugium, and it will overflow into a 20g plastic container which will be dedicated to the return pump..

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plumbed the return line from the sump.. i built a modded spray bar extending the length of 3 sides of the tank, which will sit just below the water line and drilled a small hole every 6" along the lines...here she is with the sump filling up with tap water while the return pump is shooting it into the tank..

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here she is ...water is still a bit cloudy from all the commotion but nonetheless..drum roll please...

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now i just have to finish the rest of the canopy and stain the side panels of the stand! the aquascape turned out spectacular. what do you all think?!?
 
Congratulations! Well executed! I love cube tanks and this cements the fact that my next tank is going to be a cube! I think fish love it, too, and I like the kind of ring arrangement you have going on with the live rock! DIY at its best! Can you let us know more about how you actually constructed the tank? You obviously have that down to a science. Any pics of that?
 
thanks guys...i didnt get a chance to snap any pics of the tank construction, mainly because it took three people and 6 hands to hold the glass and silicone everything and i wasnt thinking about taking pictures during the nervous excitement. but here's a quick breakdown...

i decided to build the tank on the stand inside the house because of its size. first i drilled the holes for the drains on the bottom glass, set it on the stand, applied silicone to the joints of the front pane and set it, next the sides, then the back, then the overflow box inside the tank, and finally the top bracing. i installed the bulkheads after the fact only because the overflow box was big enough to stick my arms inside of. 3/8" thick glass and 1/4" acrylic for overflow. 1.5" dual drains. anymore questions just ask..

thrice..i was originally going to go with the dursos but after reading about how hard it is to tune two dursos in one box i didnt want to mess with it and just went with stand pipes. obviously there is some noise but not "loud" by any means. the puffer is great with my corals. i have xenia, zoos, shrooms and frogspawn and he never messes with any of them, he hasnt even touched my coral banded shrimp!
 
Great job of recycling, turned out really well. I don't think everybody knows how much work is involved in such a project, but you pulled it off.
May I make one suggestion on your aquascaping, it's too symetrical, three equal pillars with two evenly spaced bridges. I'm not trying to be overly critical, just constructive, because you've got the start of a great tank there. In nature, especially with rocks, its very rare to see symetry or uniformity. Try a more off balance feel, purposely avoid matching one arrangment to its naighbour. Good Luck and well done.
 
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