Connecting 2 tanks to make one larger tank???

  • We are currently upgrading MFK. thanks! -neo
Wow, I didn't know this was that complicated. My mistake, I was going to try to connect two 29s but I have now rethought that
 
Well Fishman its actually not that complicated, not in my mind anyway (i just have issues describing what im thinking at times lol. Just do a lot of research and make sure you have whatever bracing you may need and seal it right, and in theory you should be golden. I did it with two 10 gallons as a kid, so its not terribly complicated. I just wanna make sure i got all the bases covered and thought of everything before i think bout jumping into it since the one im considering will be significantly bigger.
Oh and another thing...test it for a period of time outside before filling it in your house so if it does blow you wont destroy anything lol
 
My main reason for thinking up this plan, is to be able to get more depth (both front to back and slopes) of aquascaping, as well as a larger footprint for what will probably be an amazon/south american tank, with various cichlids possibly angels and such. and i would very much like to have the more square footprint to allow more scaping and grading from front to back to give it more depth and 3d enviroment cuz i enjoy that look more and i think it would make for more oprotunities for the fish to act natural.
 
i would find out what glass guys use to bond there glass together in showers and such.
i dont see it being that much of a issue but in the end the main issue is the thickness of the glass. and how confident you are in it. i would brace all the way around the top and bottom of the tank as to help strengthen the entire box, simular to what you said about strengthening it from bowing. and you can make a clean caulking line doesnt have to be thick. i would use the glass bonding adhesive, and two small lines of cauking inside and outside as a extra. and would just put a clean thin line of black tape down the joint. as a finnish. anything is possible. i would just make sure to only have small fish,and would be cautious on filling the entire thing. i know about doing what you have to do sometimes. id just say go for it. just know it could fail. but thats how some of us like to learn. :) just keep it over your bathtub.hey may help with any constipation issues never know, go for it!
 
i would find out what glass guys use to bond there glass together in showers and such.
i dont see it being that much of a issue but in the end the main issue is the thickness of the glass. and how confident you are in it. i would brace all the way around the top and bottom of the tank as to help strengthen the entire box, simular to what you said about strengthening it from bowing. and you can make a clean caulking line doesnt have to be thick. i would use the glass bonding adhesive, and two small lines of cauking inside and outside as a extra. and would just put a clean thin line of black tape down the joint. as a finnish. anything is possible. i would just make sure to only have small fish,and would be cautious on filling the entire thing. i know about doing what you have to do sometimes. id just say go for it. just know it could fail. but thats how some of us like to learn. :) just keep it over your bathtub.hey may help with any constipation issues never know, go for it!
Welcome to MFK.
If i do this build it will be with silicone. Silicone is more than capable of holding glass. I will also be "patching" the inside of the joint with both sides and the bottom with glass sheets over the joint.
 
Welcome to MFK.
If i do this build it will be with silicone. Silicone is more than capable of holding glass. I will also be "patching" the inside of the joint with both sides and the bottom with glass sheets over the joint.

I don't see why your plan wouldn't work. Use the silicone to make a water tight seal and the water pressure will keep the added glass you're using in tight.
 
I would take the front and back panels off of tank #1 and use them as the front and back panels of the big tank. Then I would take the front and back panels off tank #2 and use them as the side panels. Then I wold go buy a sheet of glass to fit in the bottom. Then it would just be a matter of bracing. As people have stated before, its only the vertical water depth that increases the force on the sides of the tank, therefore requiring thicker glass. All having a longer pane will do it require more bracing so that it will not bow out too much. Even with bracing, my 300 gallon acrylic still bows out 1/2" in the middle, and it is a factory purchased tank. I say go for it and prove the haters wrong. If you did it this way, and you incorporated the upper bracing into a built-on hood with a flip top, you could actually make it a very pretty tank. Good luck and keep thinking outside the box
 
did I miss something? Do you already have two 55 gallon tanks? If so then maybe I could see trying it, but if you have to buy the tanks wouldn't it make more sense to just buy a 100 or even a 90. Instead of taking a chance on it leaking eventually? I think it would be better to use a solid pane of glass for the bottom. As suggested by ruggwood.
 
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