I use a half cup of BRS ROX Carbon mixed with a 1/4 cup of gfo. I run it through a mini reactor and change media once every two weeks. This is in a Red Sea reefer 250.
I had a velvet outbreak and now my DT has been fallow for two weeks. How many more weeks should I leave it empty before introducing fish? One other thing, does prazipro or cupramine kill beneficial bacteria?
How long should fish be quarantined? Should they be treated prophylactically for parasites or just observed? I didn't quarantine my fish in the past and lost all but two.