Hello, I was just wondering if anyone knew if adding prime 1 - 2 days after safestart will kill the safestart bacteria. I've been having trouble cycling my tank, as the guy at my LFS sold me some starter bacteria that really didn't work and he didn't tell me that my water conditioner would kill it. So therefore, I purchased a bottle of safestart, did 2 50% water changes to lower my nitrate/nitrite/ammonia levels, then added the entire bottle of safestart. So I think everything is going to be alright however I wanted to know if using prime will help at all. Or will it kill the safestart?