I have a relativly new SW tank (few months old) I've been doing weekly water changes and checking the chem levels regularly. My Ammonia seems to stay around .2 all others are 0. pH is about 8.2-8.3. My alkalinity is really high though, like off the scale high. It doesn't seem to be bothering my fish though. Do I need to worry about lowering it and if so how can I do that? I've got 2 little ocellerous clowns a purple fire goby and some blue foot hermies