Powerhead

J

jri4

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May 15, 2008
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Hi:

I have had a 75 gallon tank with one Oscar up and running for one year. Lighting is just a regular single tube flourescent bulb, Aquaclear 110 power filter, and two airstones for oxygen.

I am looking to replace the airstone with a powerhead. I really like the Hydor Koralia Powerheads. Which one (or two) sizes would be suitable to replace my airstones and are appropriate for my Oscar?

Thanks!
~James
 
Not usre about the brand of PH, but any PH is OK.
 
jri4 said:
Hi:

I have had a 75 gallon tank with one Oscar up and running for one year. Lighting is just a regular single tube flourescent bulb, Aquaclear 110 power filter, and two airstones for oxygen.

I am looking to replace the airstone with a powerhead. I really like the Hydor Koralia Powerheads. Which one (or two) sizes would be suitable to replace my airstones and are appropriate for my Oscar?

Thanks!
~James
Click to expand...

You want at least 10x turn over. So for a 75g tank you want a PH that can push at least 750gph.
 
TheIrishJedi said:
You want at least 10x turn over. So for a 75g tank you want a PH that can push at least 750gph.
Click to expand...


i agree. and don't worry about your oscar as it is a hardy and resilient fish. it might even enjoy the force within the tank that is produced by your powerhead. :]
 
I don't use any powerheads on my 90gallon (1 - 12" Oscar, 1 - 14" common plec, 1 - 4"pink con), but I do run 2 Emperor 400's heavily packed with filter floss.

I have found heavily packing the floss does a superior job over the filter cartridges of not only removing debris but also in clarifying the water.

I use one with a long pick-up tube and one is 1/4 shorter. Each filter is on opposite ends of the tank (on the back) giving me good circulation.
 
Power heads are good but I still prefer 3 strategically placed air wands (1 in the middle and each side) hooked into a valve block where I can adjust the flow to each and move debris to the intakes. 1 powerful pump can move water in that area very fast. As a result free floating or accumulated debris in my tank is almost non-existent. Also I can ebb the flow at night to micro bubbles so the fish can rest peacefully.
 
Koralias are circulation pumps, unless it breaks the water, the aeration wont occur and defeat the purpose of trying to replace the airstones, keep in mind, the koralias need to be submerged. If you want to, try the hagen powerheads as they have a venturi which sucks air in and aerates the water as it expels it.


TheIrishJedi said:
You want at least 10x turn over. So for a 75g tank you want a PH that can push at least 750gph.
Click to expand...

this isnt necessarily true, depending on your decor and purpose of the PH, which in your case is aeration it seems, this may or may not be necessary
 
I agree, though I'd go with either a couple penguin 1140's, or maxi-jet 1200's (which are the least expensive and can be bought for around $20 each, and have a bunch of aftermarket mods if you later decide to convert the ph to be used for something else, other than oxygenation). Both have the venturi feature as well.
 
Thanks to all, this is what I was looking for!

I want to use the air bubbles as aeration and not so much water movement. I just want to be sure there is enough oxygen in the tank for my Oscar. However, I was not sure if the Hydor Koralia would work... I always wondered why it didn't have the tube sticking out of the top! Anyways, I will have to go back and look at the powerheads with venturi then... Thank you!

The only reason I am not wanting to use air stones anymore is my Oscar is driving me crazy by pulling the stone out of the sand, yanking on the tube, and swallowing the suction cups that I at one point had attached to the tubing... He would pull off the suction cup and hold it in his mouth for an hour while I tried to get him to give it back...

Thanks for all the information!
~James
 
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