Too much current for cherry shrimp? - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 03-31-2020, 06:11 PM Thread Starter
Algae Grower
 
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Too much current for cherry shrimp?

I've got a 5 gallon tank that is well matured and fully planted that I'd like to house cherry shrimp in. Right now, I just have a little hob filter that was fine for the betta that used to live there, but I've got an unused Eheim 2213 canister (116 gph, rated for 66 gallon tank) that I'm wondering would be ok to use. I've heard you can't have too much filtration, but would that create too much turbulence/current for shrimp? Would a lily pipe or one of those circular outlet pipes be good to break up the flow? I've never kept shrimp before but have been reading quite a bit and I think I've got a good setup, but would still like to step up filtration.

Thanks!
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post #2 of 4 (permalink) Old 03-31-2020, 06:22 PM
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I think that's going to be too much. If it were a HOB filter, I'd say you could probably make it work with a 20x turnover rate but that would be a ridiculous amount of direct current coming out of a canister filter. They are just so different in the way they put water into your aquarium. I have an Aquaclear 50 (150 GPH) on a 5.5 and it's a lot of flow, but doable when turned down. If you have a spraybar to spread out the current it *might* work but the regular output is going to make that tank swirl.

Nothing good happens fast in an ecosystem.
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post #3 of 4 (permalink) Old 03-31-2020, 07:47 PM
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The HOB that's on there might be suitable as long as the shrimp can't get inside it. (they have been known to crawl in the output area - input needs sponge)
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post #4 of 4 (permalink) Old 04-01-2020, 01:39 AM Thread Starter
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OK, thanks this is all great info. Maybe I am overthinking it and could just keep the hob filter, though it seems to leave a lot of dead spots. I read recently that you can turn down the flow of a canister filter by using a valve on the output hose, so I might play around with that. I'll definitely use a sponge on the intake on whatever I use.
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