I'm going to be moving to Tampa and I want to keep tropical fish in outside all year. I'm thinking a pond/aquarium which could be viewed from one side would be best. I'm looking for some ideas on how to house/heat this in the winter months. I'm thinking a water temp of 70F would be the lowest I would like to go. The avg air temp in Jan is about 63F and I think water temps are in the low 60s also. I'm going to need some way to heat this water up a few degF with out costing me a lot up front or in utility bills. I think a heat pump is the best answer but are pretty $$.
John
John