I've read a few sites that say the minimum for a pair of convicts is a 20g long. I've also read that the minimum is 29g. I have a 20g long, a 29g, and one that is a little taller than a 29g... maybe a 35g? Dunno...
Anyways, what IS the minimum? I'll probably use the 29g anyway because I have a stand for it. I'm just curious.
Also, filtration with a 20g long would be a little difficult I would think due to the possibility of the fry being sucked into the intake easily. I would think that the chances would be reduced if it was on a 29g.
Another question... substrate. I've seen in the LFS that various substrate is used. What is the general opinion on which is the best substrate?
And those terracotta pots... do you really need to knock the bottom out? I destroyed about 4 of them this weekend.
I don't have the fish yet, I want to get the tank all setup and rolling for at least a week before I add a pair.