I have a 56 gallon column that measures 30"L x 18D x 24"H. I have been growing out some goes for another tank in it but am close to moving them now. My friend breeds discus and my wife has been begging me to try raising some. Is this a suitable tank for them and how many would you recommend? Ultimately I would like to end up with a pair and move the rest of them on to my buddy's operation. I plan on painting sides, back and bottom black. I will be going bare bottom with two planted clay flowerpots. I will probably filter with a canister but I am undecided on that. I plan on buffering with peat as I have been able to maintain 6.2ph very consistently doing this with tap water. Wish I could afford an RO unit like my friend but I can't. Any input is appreciated.