powerheads?
 

what is the deal with power heads...my lfs told me that i would need about 5 for a 120 gallon tank...but when i put one in everything was thrown about the water is unclear and the look is not what i want how many powerheads do i need and where should i place them throughout the tank?

they help oxygenate the tank and provide the current that the fish will love

how many powerheads are recommended on a 120 gallon tank? and what are the gph on them? i found a place that sells them cheap and i want to buy enough

there are many different types of powerheads, some 50 gph, others 200gph. Whatever one is best for your tank.

I run three @270gph in my 150. PLENTY

Would it be better to run 1 200 gal/hour pump, or 4 50 gal/hour pumps? The specific number of gallons are arbitrary. I am just trying to ask if you want one big one or a bunch of little ones.

2 medium sized ones are best, 4 small ones are a waste of money, 1 big one might not get the whole tank, 2 medium ones are best, one on the left side blowing indirect current to algae/rock/corals while you can put the other one on the other side at the top of the aquarium to get good oxygen tansfer

Good to know. Are there any "low pro" powerheads on the market or a way to keep them out of sight while still allowing them to do their job? I'd like a natural looking tank, and in all the discovery channel programs that I've seen, none of them had a powerhead in the reef documentary...

you can hide them behind rocks and stuff, they are ugly but do the job, if you dont like the look then just get 1 big one and place it at the back corner of your tank.

thats the thing with t.v., they get things to look better than they are. its just kinda something you have to deal with. And its best to get the best powerhead you can, with good water flow.