When To Add Powerhead? Piranha Tank

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ScrubLordMike

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Hello looking for some advice on if I need a powerhead for my tank right now or not. I have a 120 gallon freshwater tank that come Tuesday will have (10) 3/4 to 1 inch piranha fry, I know I will eventually need a powerhead but I’m concerned if I place one now that it’ll be too much for the little guys and add unneeded stress for them. I’m looking at a Hygger 3200GPH Quiet Aquarium Powerhead but like I said I’m concerned that it’ll be too strong for them when they’re this small but don’t want to buy a smaller one if it’s really not needed while they’re small. Current circulation I have is from my sunsun 304 canister
 
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Nobote

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Why 3200 gph? That seems really strong.
 
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kallililly1973

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Pics? I think they are going to get pretty big quick depending on their diet so why not go big and try to buffer it as they grow till they reach a bigger size then you can open the gates and let it flow. No experience with piranha but following and looking forward to seeing how they do! Good Luck!
 
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Sheldon13

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Can you get a power head with adjustable flow?
 
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A201

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Piranhas are river fish and are fully adapted to endure very strong currents. They rest & congregate behind rocks & huge boulders, which break the current.
Build a hardscape that mimics an Amazonian stream. A few tall flat bottom rocks strategically placed should do the trick. Put the power head in while they're small. Not too keen on sticking hands into a Piranha tank. Lol.
 
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86 ssinit

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I think it would be best to add while fish are sleeping.
I think that’s a lot of water flow!! I have this on my 125 now in the ex-350 version. Comes with 2 sponges. Bought on eBay for under $20C2DFFCBC-4EC9-45B0-98EA-A86D3748C73B.jpeg
 
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Nobote

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Personally I would downsize to a 2000 gph model for a 120gal aquarium.
 
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ScrubLordMike

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Thanks for the replies everyone! Super helpful decided to go with a less powerful model but it looks everyone is in agreement that adding one now is perfectly fine.
 
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