Originally Posted by
SDAquariumRock
No good estimate on the 125g. If there are no corals or inverts, treat it with hyposalinity for 2 weeks. Also, run a UV filter or a Diatom filter. Use a pump, turkey baster, or power-head to blast the rocks. Get some of the ick in the water so it can be cleaned by the UV or Diatom. Ick is often in all of our tanks to some degree. If the fish is healthy and there are no other contributing factors, they should not develop the infection. QT all fish in water from your tank before introduction. This will lessen the chances of it occurring in the future.