Flow in a 5gallon? - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 03-08-2012, 09:16 PM Thread Starter
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Flow in a 5gallon?

The 5gallon I have cycling got hit pretty hard with BGA a week ago and I've been reading about low flow promoting algae growth. I want it to be a shrimp tank and I've read that shrimp don't like too much flow so I'm curious, do I really need a current in the lower levels of the tank to fight algae or no, and if so, how would I provide it to a small tank? I have a small cascade HOB filter with a piece of sponge beneath the outflow to prevent it from knocking around plants and substrates, but it's mostly for surface agitation.

PS: H202 is AMAZING at fighting BGA!
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post #2 of 3 (permalink) Old 03-08-2012, 11:35 PM
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I have low flow and almost no flow tanks...while the later is more algae prone, something else is getting the party started. I guess what I'm saying is, in my opinion, the flow isn't the main reason you are growing an algae farm. Something else is wrong.
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post #3 of 3 (permalink) Old 03-09-2012, 04:30 AM
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Quote:
Originally Posted by Daximus View Post
I have low flow and almost no flow tanks...while the later is more algae prone, something else is getting the party started. I guess what I'm saying is, in my opinion, the flow isn't the main reason you are growing an algae farm. Something else is wrong.
+1; Sounds like an excess of nutrients in your water column, too much light, too much CO2, or a combination. I would suggest cutting the lights and completely shading the tank out for a few days to halt the BGA growth, then doing a big water change and siphoning out as much BGA as you can. Set your photoperiod low and do small, frequent water changes until conditions improve. As a supplemental action, you can also dose with Maracyn (erythromycin).


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