What PH for 20gal

[BlondeNaso1]

I have a Maxijet 400 in my 20gal now ang would like to add another PH for more ciculation.  Should I add another 400 or a Maxijet 600?  I think I want to get a PH that is a little more powerful, but not too powerful.  Does anyone have a 600?  Is it too strong for a 20gal? Thanks

[HuBu]

i have never purchased a maxi-jet. i use Rios. right now i have a rio400 in my 10gal. assuming that the numbers match up between products. i would recommend the 600 for a 20 gal.

[Kapelakin]

I have a 600 and it's not too strong in my 20.  I have another maxi-jet in with it, but I'm not sure if it's a 400 or 600.  I run the 600 constantly, and the other one on a timer 12 hours a day.

[NanoReefer53]

i use 2  maxi-jet 500's in my 20g tall.

[Sahin]

I use two Maxi-Jet 600's in my 24G and I think they are a bit too rough, so I slowed them down a little.

[pandabehr]

I am a big fan of rio powerheads. I run two rio 90's in my 10 gallon and a rio 50 in my 6 gallon. So far both systems have excelled.