Brew12
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With TTM the hope is that a fish isn't in any single tank long enough to develop dangerous levels ammonia. If you do have a higher bioload when doing TTM and do have an issue with ammonia it is safe to use something like Prime to bind it and protect the fish. You can also seed 5 sponges in your sump and use sponge filters during TTM and throw the old sponge away after every transfer.The thing that confuses me about ttm is that you won't really have any nitrifing bacteria in the tank? If you are sterilizing everything after each transfer no real time to get a cycled tank?