Yes, Kenny is one of the good places to buy your fish. He is very responsive to email questions. His fish are among the best anywhere. With that said his fish are very forgiving. I set up my tank two days before my Kenny fish arrived. Used tap water from a garden hose and then heated it to 83 degrees. Added chemicals to eliminate chlorine and to establish bio. I started with black sand, plants and two branches but quickly changed to bare tank and one branch. I run two exterior filters. After 5 months the five fishes are happy, growing, eat almost anything. The five ranged from 3.5 inches to 5.5 inches but all seem larger now. I would think that you can tend toward the side of caution yet you could over think it as well. I began keeping and breeding wild discus back when they were the only option to be had. Even then it was 20 gallon bare tank, and blended beef heart, and peat moss in the filter. That simple. Now it is even easier than that. Fresh water seems to be the key along with a huge selection of good diet foods.