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Seeding new sponges

Canuck AquaTropix

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Fully? Give it a month. 

I've seen people sneak by with just two weeks but especially given three sponges (you did still leave at least one old sponge right?) is a lot of new surface area to colonize? I'd  err on the side of caution and aim for a full month.

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Kind of depends on your bio-load.


"This process normally takes anywhere from 2-6 weeks. At temperatures below 70F, it takes even longer to cycle a tank. In comparison to other types of bacteria, Nitrifying bacteria grow slowly.  Under optimal conditions, it takes fully 15 hours for a colony to double in size!"

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