Hello people, so this is the story.... About a month ago I was doing my tank maintenance when I noticed there was a small tadpole in my sump, I didn't think much of it and I left it alone, I thought maybe is just some bug that'll develop and fly out or a frog or whatever... So now I'm doing maintenance again and the tadpole is now a 1 in yellow watchman goby..... I don't know how it happened but now it's in my quarantine tank....