Biocube overflow/return

tidus10

New member
Hello

I just got a Biocube 14 and I want to plumb it into my 40b/20 sump... how can I achieve this? I really want to be able to utilize the stable system and ATO on the biocube...

Any help would be great! Thanks!!
 
Well you don't need a sump to have an ATO for your biocube. If you are going to have a sump it kind of defeats the purpose of the sump area in the back. I have seem some tanks where they cut out that whole black sump area and drilled the back. That's always an option, as is using a siphon overflow if you find one to fit. It feels like if you are going to run a 40b, why not flip it and use the 40b as your DT and the BC14 as the sump! :D

Edit: I get it now... You have 40b with a 20g sump, but want to plumb you bc14 into that system. I should learn to read more carefully and not post until I actually wake up. The drilling/overflow comment is the same though: you can drill the back or use an siphon. You could even use some/all of the built in as your overflow.
 
Last edited:
Plenty of information on them, very little of it is true. What is true, is they are fine for very low flow systems: below 50gph; what is also true is they don't not work as advertised, and you cannot make them work as advertised...
 
You could do an overflow box, but if you have a system I would just plumb it into your sump that existing.
 
That is what the original post stated, I want to find a way to plumb it into the main system but I need to figure a way to get the water out... im not really a fan of drilling thin glass
 
With enough mods, you can do anything, with any tank you choose, as long as the glass is not tempered. Whether a tank is tempered or not, is almost an unanswerable question by anyone other than the manufacturer, and the manufacturer is not likely to be very forthcoming with a straight answer....unfortunately, I will not attempt to answer that question....
 
I've seen several successfully drilled BioCube 29s, but no 14s. You could try using one of the commercially available "nano" HOB overflows in chamber 3 (with some cutting of the plastic), but they, like any HOB overflow, come with inherent risk.
 
Back
Top