05-02-2011, 07:08 AM
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Originally Posted by Grimmjow
I put a small sponge filter in an established tank, it has been there for 2 weeks. I have it in there so I wont have to really cycle the tank its going into, all that is going into this tank will be shrimp (pretty sure thats the plan).
How long does it take for bacteria to grow enough on this filter?
A few factors for consideration.
Bacteria develops best at pH levels above 7.0 and also develops a bit better in tropical temps as opposed to lower temps.
Surface area is also important and sponge filters provide a large surface area which is good.
Two weeks should be enough time assuming the established tank has been running with fishes for at least two months,and there were more than one or two fish residing in the established tank.
Would recommend slow stocking if this were to be a fish tank, but for shrimp,(small bioload) I should think you would be safe.
Would not hurt to check the water for a day or two after placing the shrimp in the tank.