So this is my 1st post and I've read/searched a lot on low tech tanks. I have my 10 gallon started with some sand, a bunch of low light plants, standard 15w powerglo, and a filter sponge from my 20 gallon. This article by Steve Hampton has been the most informative so far, but I'm not sure what is meant by a low fish load. For a 10 gallon does that mean something like 4 neons or 1 paradise fish? Is there such a thing as too low of a fish load for a low tech tank?