Canuck AquaTropix Posted November 4, 2020 Share Posted November 4, 2020 I added three Aquaclear 50 sponges into the very mature Aquaclear 110 on my main tank. How long will it take for the new sponges to be fully seeded? Link to comment Share on other sites More sharing options...
Nataku Posted November 4, 2020 Share Posted November 4, 2020 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. Link to comment Share on other sites More sharing options...
KBOzzie59 Posted November 4, 2020 Share Posted November 4, 2020 Kind of depends on your bio-load. https://users.cs.duke.edu/~narten/faq/cycling.html "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!" 1 Link to comment Share on other sites More sharing options...
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