well 75 is up and cycling, my other smaller hobby is reptiles so i have a lots of wood(never used by teptiles) I am not sure of the type of wood, it is tan is all i know. SO before i de-infect it am trying to get it submerged, I have had it submerged with rocks holding down for the past 3 straight days. I go to check this moring and it pops to the top of suface. The water has been changed once and this time it hardly has a brown tint, assume the tannins comming out. Will it ever submerge or do i just need to buy some driftwod, it is just so dang high.