Jhead85 January 30, 2015 Share January 30, 2015 Need some ideas for a gravity auto top off for a biocube 29... Gonna put a 2 gallon jug on a shelf above tank with a tube into the tank just need to know what to use..maybe a float in the 3rd chamber but not sure what kind or type to get Link to comment Share on other sites More sharing options...
WilRams January 30, 2015 Share January 30, 2015 Does it have to be gravity fed? I feel like it's over complicating it and maybe not as precise. Would a Smart ATO work for you? Compact, simple, and the price point is much better then a lot of other units. Link to comment Share on other sites More sharing options...
YHSublime January 30, 2015 Share January 30, 2015 Gravity fed would work fine. PaulB runs one, and bbatav (I think that's his handle) has a nice write up on one somewhere. I'll see if I can find it. Link to comment Share on other sites More sharing options...
Ryan S January 30, 2015 Share January 30, 2015 I use a tunze nano ato. a 5.5g tank fits in the stand underneath. works great. very reliable and safe. Link to comment Share on other sites More sharing options...
08can-am January 31, 2015 Share January 31, 2015 I use a tunze nano ato. a 5.5g tank fits in the stand underneath. works great. very reliable and safe.This is the exact setup im using on my 27 cube. No issues with it. When i ran my biocube i used an ozmolator on it. Link to comment Share on other sites More sharing options...
sen5241b February 2, 2015 Share February 2, 2015 Back when I had 4 tanks and no money for 4 ATOs, I would wait till water level was low then balance a gallon jug of RO water on the corner of my tank with a pin hole poked in the top and bottom of the jug.Worked fine. Link to comment Share on other sites More sharing options...
Happyfeet February 3, 2015 Share February 3, 2015 (edited) This is the exact setup im using on my 27 cube. No issues with it. When i ran my biocube i used an ozmolator on it. I as well use the Tunze Osmolator Nano on my BioCube, and it is perfect, never had an issue with it. Only problem I had was I should have installed it from day 1. Edited February 3, 2015 by Happyfeet Link to comment Share on other sites More sharing options...
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