metal_fish

I Replaced an older heater in my aquarium with a hydor theo it has worked well. Does anyone else own one and what do you think of them?

jsalemi

I don't currently have one, but reports here are that the Theos are really good heaters. You should be fine with it.

COBettaCouple

after we had a 2nd visitherm deluxe go into "cook fish" mode, we tried a Hydor Theo on the recommendation of Tim and now have a few of them. I really like them and they'll be what we order in the future when we need more heaters.