Powerhead advice? - The Planted Tank Forum
 
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post #1 of 13 (permalink) Old 04-26-2012, 06:25 PM Thread Starter
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Powerhead advice?

Any suggestions on particular powerheads that I could use to improve the circulation in my aquarium? It is 42 gallons. I want to provide some flow to make the top ripple and to circulate the water in the aquarium.

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post #2 of 13 (permalink) Old 04-26-2012, 06:42 PM
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My first question would be what are you using as a filter and what is it rated at? I try to go for at least 10x circulation around the tank, so try to shoot for 420GPH. If your filter is rated for 300GPH, I would say it's actually only around 225GPH after filter media is taken into account, I would shoot for a powerhead around 200GPH.


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post #3 of 13 (permalink) Old 04-26-2012, 06:51 PM Thread Starter
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I have a pretty low flow filter... It is only 185 gph, a Fluval 205. What would I do with that?

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post #4 of 13 (permalink) Old 04-26-2012, 06:57 PM
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I'd suggest a Koralia 240. If you're adventurous, go for the 425, but I think a 240 would be fine.
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post #5 of 13 (permalink) Old 04-26-2012, 07:03 PM
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So since it's rated for 185GPH, it's more along the lines of 140GPH. So you will need to find a powerhead rated around the lines of 280GPH. I use a Marineland Maxi-Jet 900 (rated for 230GPH) and I love it. I can't say anything bad about other powerhead brands as I've only used Marineland. If you're going Marineland, I would go for the Maxi-Jet 1200 (rated for 290GPH) which will put you around the 420GPH mark. You can do a little research into other brands, but just find something along 280GPH


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post #6 of 13 (permalink) Old 04-26-2012, 09:37 PM
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I have a koralia nano in my 36 bowfront. Works great and looks a lot better than maxi pumps IMO
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post #7 of 13 (permalink) Old 04-26-2012, 09:51 PM Thread Starter
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The koralias look really good, I think I'm leaning towards those. Thanks for all the info shinycard, it is really helpful.

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post #8 of 13 (permalink) Old 04-26-2012, 09:51 PM
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Quote:
Originally Posted by rainbuilder View Post
The koralias look really good, I think I'm leaning towards those. Thanks for all the info shinycard, it is really helpful.
Anytime

Yes, the Koralia's do look a LOT nicer than than Marineland's, but my LFS only had Marineland's in stock at the time and I needed something. Now looking at the Koralia's, I wish I would have waited. Oh well


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post #9 of 13 (permalink) Old 04-27-2012, 12:44 AM Thread Starter
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Ok, the koralia 425 wouldn't be overkill, would it? That is what I am leaning towards.

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post #10 of 13 (permalink) Old 04-27-2012, 02:08 AM
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The 425 would be too much for me, but to each their own. I'd stick with the 240, I wouldn't want my fish getting blown around in the tank


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post #11 of 13 (permalink) Old 04-27-2012, 02:43 AM
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If you're looking for a gentle flow, go with the 240. If you want a current, then do the 425. Consider how your fish react too because not all will like it. Where do you plan on putting it in the tank?

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post #12 of 13 (permalink) Old 04-27-2012, 03:09 PM Thread Starter
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I plan on putting it near the top to make the surface ripple or along one of the sides to kind of make a round current in my tank because it is a hexagon and the flow would bounce off of the walls in a circular pattern. I do have blue rams and angelfish so they may want a softer flow but the tank is so deep if I put it near the top they'd have plenty of refuge lower down.

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post #13 of 13 (permalink) Old 04-27-2012, 03:23 PM
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With Koralias, go a number lower than you think you need...

They provide a lot of flow, and you can't easily reduce it like you could with other power heads (by adding a sponge pre-filter, for ex).


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