Hardly any fish crap more than Koi, so you can stock higer numbers as long as your water pharameters alow it.
But some fish are theritorial and need some space fore that reason.
5 feet deep means that themperature also will be something you have to consider.
Look up on your local supliers what kind of fish they can offer, then see wich one suits the habitat and you.
The supliers also can give you 1. hand details on all needs to the specific speice and combinations of such.
And/or if you need any permits to stock
Last edited by andedammen; 05/30/10 09:42 AM.