Powerhead location

[jopbgon]

I have been wandering where's better to locate powerheads in the aquarium, I have a couple of them in my 120 g tank(home of 3 L-128), they are located at the top of the tank in oposittes sides(one at left and one at right)but today I read at the catelog that the current should focus in the caves where the pl*co live ,where's better to put them? in the bottom, middle or the top of the tank??

[alpine]

Waiting for the answers to your question and maybe add how many units they would recommend .

Roberto.

[alpine]

Anyone ?

[apistomaster]

I attach a large sponge filter to each of my power heads. It always seems to be a shame not to get filtration from the power head since I use them for currents anyway and often lay them on their sides so the current is mainly concentrated on the bottom. When I want the high flow but less current I either point the outlet towards the surface or direct it to a corner to diffuse the directionality of the flows. It all depends on the fish. I use the the outlet pointed toward the corners in my discus tanks. Most of my tanks have two sponge filters; one air driven and the other fitted with a power head. I use the Azoo Oxygen Plus Bio-Filter #6, a pedestal design sponge filter and MaxiJet 600 power heads on all my tanks from the 20 gal long to 40 gallon breeder style aquariums. In addition to these filters I usually also have one air stone. If I don't use an air stone then I may pump air to the venturi inlet of the power head.
For riverine fish I aim to set up directional flows. For fish from more of a still water environment I go for a deflected flow that does not set up any directional flow.

[alpine]

Larry, thanks for the reply . I have been trying to see if I have enough circulation and areation in the 40 gallon breeder I am setting up for plecos.
Again thanks,
Roberto