water movement - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 11-23-2015, 05:05 PM Thread Starter
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water movement

Hello,i have a 42 gallon high tank with a sunsun canister filter with spraybar that works great but i think i need more water movement especially near the bottom.i have researched some sunsun wave makers but having never used one i need some help with choosing a good one.i have pressurized co2 so don't want a lot of surface tension and also not so big as to be intrusive.Any help will be appreciated.
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post #2 of 6 (permalink) Old 11-23-2015, 05:15 PM
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I use the Hagen Elite Mini underwater aquarium filter. For Co2 dispersion and extra water flow. Love this little product...lots of bang for the buck:-)


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post #3 of 6 (permalink) Old 11-23-2015, 06:04 PM
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There is actually a bit of a difference in a true wavemaker and powerheads and circulation pumps.

For circulation in your planted tank you just need more circulation throughout the whole tank. Sounds like you mentioned dead spots on the bottom, so a circulation pump will do.

As long as you have enough surface agitation to bring in enough dissolved oxygen, then you are fine. You can reposition the spray bar to provide different amounts of surface agitation if you wish.

For circulation pumps, a lot of people seem to recommend Hydor Koralia circulation pumps (they have a mini series too)

For a cheap interchangeable powerhead/circulation pump there is the Marineland MaxiJet line. Only trouble with these is that there are quite a few reports of it making a loud noise (vibration?) in circulation configuration I believe.

I don't know too much about what circulation pump is best (at least the cheap ones), but there are many options to choose from, just research. Any circulation pump should do. No idea on what size/strength either.
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post #4 of 6 (permalink) Old 11-23-2015, 07:30 PM
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I use a Koralia 425 in my 75g and it works great. I would probably get the 240 for your tank. The 425 might be too much for a tank like that. My 75g is 4ft long so I need a decent amount of power.


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post #5 of 6 (permalink) Old 11-23-2015, 07:59 PM
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Koralia 240 as mentioned would be perfect for your tank. Just may have to play with positioning it to get the right flow. Make sure it compliments your filter outflow versus creating turbulance.
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post #6 of 6 (permalink) Old 11-23-2015, 09:26 PM Thread Starter
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Thanks for all the ideas,i have a spray bar so would you suggest it be placed at the opposite end near the middle or bottom?
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