I have a 29G bio cube which comes with its own pump and I used a set of leftover ceramic bio balls from marine pure for the biological aspect. I may get a small skimmer to improve ph value, though it may defeat the purpose on a Q tank but we'll see. A 29G for me is sufficient, I don't plan on getting too big a fish at a time as I like to watch them grow. I bought the bio cube for its simplicity and sleek look as I didn't want to see pumps, wires, etc. That's because where it's at its visible to all and i don't have a fish room
. Wish I did
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