How do powerheads work?

haywood2

New member
Do you basically just take them out of the box and put them in the tank and plug them in? Or do you need an air pump for them? Can you adjust where the water flows to? Should the water flow across the bottom of a sand bed to keep dying matter from decaying?
 
You probably won't want to put the powerhead too close to the sand, or you're going to get a serious sand storm. Initially, especially if you're using really fine sand, you'll probably want to keep your powerheads towards the top of the tank and not pointed down at all. After awhile, your sand will start to bind together, and it won't be as much of an issue. You do want some flow along the bottom of your tank for just the reason you stated, though. Generally, the best thing to do is keep the powerheads towards the top of the tank, perhaps pointed slightly down, and use at least two powerheads with their streams crossing each other. This is going to disperse the flow and make it more random. If you're planning on doing corals, they'll love you for it.

Oh, and if your powerheads come with suction cups, don't use them. They're going to lose their suction before long, and you're going to have a rogue powerhead spinning around your tank causing all sorts of havoc.
 
<a href=showthread.php?s=&postid=9547028#post9547028 target=_blank>Originally posted</a> by IslandCrow
You probably won't want to put the powerhead too close to the sand, or you're going to get a serious sand storm. Initially, especially if you're using really fine sand, you'll probably want to keep your powerheads towards the top of the tank and not pointed down at all. After awhile, your sand will start to bind together, and it won't be as much of an issue. You do want some flow along the bottom of your tank for just the reason you stated, though. Generally, the best thing to do is keep the powerheads towards the top of the tank, perhaps pointed slightly down, and use at least two powerheads with their streams crossing each other. This is going to disperse the flow and make it more random. If you're planning on doing corals, they'll love you for it.

Oh, and if your powerheads come with suction cups, don't use them. They're going to lose their suction before long, and you're going to have a rogue powerhead spinning around your tank causing all sorts of havoc.

ditto. I was going to say this, but it has already been said. The more corals the more powerheads....In one of my reefs...a 75 I have many corals and 5 powerheads....
 
Re: How do powerheads work?

<a href=showthread.php?s=&postid=9546402#post9546402 target=_blank>Originally posted</a> by haywood2
How do powerheads work?

Do not question the magic of the glorious POWER HEAD. Last person that questioned how they work was cured with hair algea the rest of his life!
 
What hey do is disturb the surface of the water, causeing a gas exchange -thereby putting oxygen in the water, as well as provideing water flow to objects such as corals under the surface.

As long as your surface is being agitated, a air pump or air stone is not nessecary.
 
Re: Re: How do powerheads work?

Re: Re: How do powerheads work?

<a href=showthread.php?s=&postid=9547140#post9547140 target=_blank>Originally posted</a> by ionredline0260
Do not question the magic of the glorious POWER HEAD. Last person that questioned how they work was cured with hair algea the rest of his life!



:lol: :lol: :lol:
 
Disturbing the surface of the water is obviously important, but just as important is water movement in the rest of the tank. For the fish, it's important to give them some exercise swimming against the current, especially in such a confined area. My wrasse actually loves to point his nose at the powerhead from time to time and do the hamster in the exercise wheel thing. Second, it's very important for corals. It serves two functions (that I can think of). First, it brings them their food. Since they can't move, the plankton and other nutrients in the water have to move to them. Second, it keeps detritus, algae and other undesirables from settling on them and causing irritation and stress. Of course, that last goes for anything non moving in the tank, just as haywood2 alluded to in his very first post. Keep that detritus moving, and it will eventually get sucked up by the skimmer or some other filter and not provide an all you can eat buffet to algae.
 
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