Long time lurker, first time poster. Hello everyone, I just transferred from my 25 gallon nano to a 40gallon home made AIO. I have had Fowler tanks off and on since the late 90's, breaking them down during moves or if the place I was renting was not aquarium friendly. Eitherway, I was using the "trusty" API test, and noticed my ammonia is "high" at 8ppm (for days) no matter water changes and running carbon after the changeover. Everything looks healthy, my inverts are all alive (snails and peppermint shrimp), fishy healthy ( 2 clowns, lawnmower gobie, and cardinal) all corals except my Bam Bam and rasta zoas open and happy. Also I realized from having several Fowler tanks and fresh water tank, if my ammonia was at 8ppm everything would be deader than a door nail, nitrites and nitrates look what I expect to see. Any pointers?
