What return pump do you have?

I was gonna ask if the heat from the return pump be enough to worry about in regards to raising the temp. of the water?

 

I really dont have many heat issues. I live on the central coast of California and our temps stay around 70 year round. I dont need a chiller and very seldom see my heater on in the sump. My tank does stay between 78-80 pretty much all the time.

 

i didn't think it would be much of an issue at all but i thought I would ask

 

Im running a Rio hyperflo 20 on my 120 and it states on the box 990 GPH at 4' of head. I ran a CA 2200 on my 72bow with no problems either. Its now on my sons 29 Gal tank. Both pumps are extremely quiet and have no complaints with either one.

 

ocean runner or2500. very quiet. also brand new so i cant give any long term success advice, but i bought it cause i had read multiple reviews that said it was quiet, and it is.

 

I run a mag 9.5 on my 30 gal.. Some call me crazy, but I have a manifold that runs everything and whatever flow does not make it to the tank flows back into my sump so I dont have to restrict the pump..

 

It seems that I am hearing quite a bit about the ocean runner pumps as well as the mag pumps. Seems that I'm gonna have quite the decision to make here soon on what to get

 

I have a similar setup as you. I use a mag 9.5 as a return only pump. I have a valve, but run it wide open. If you are set on a submersible, I might suggest looking at the marineland 5500. I have one of these also that runs my skimmer & chiller. The marineland runs much cooler and more energy efficient than the mag. The mag runs fairly hot, which I think is the main reason I now have a chiller. If I could do it all over, I'd have gottten a powerful external pump to run my return, skimmer, & chiller. my 2 cents.

 

Well watts used is basically the same as watts on a heater. Watts is watts. Mags are good pumps, but tend to use a bit more energy and therefore more heat. I use Ehiem, but was a little disapointed after all those that rave about them.

Heat is heat. If you need it, then it isn't bad. If you don't then it is. I need the heat, so I use a submersible. Say if you ran a Mag and didn't need a heater, then when to a air cooled external and needed a heater. That heat is not "waste" if you need it. All depends on your tank, there is no one aswer.

I changed a bunch of stuff. Never owned a heater and ran a chiller. Now I don't need the chiller but run a 400w heater to keep temps up with the lights off. Heat in, heat out.

 

I have an eheim 1620 for my 65 and it works like a champ - quiet and efficient. On my old setup I used a mag 7 but it was way too noisey to consider using in my living room where my current tank resides.