acans are going for a frig receeding I Can't speak.

[phi delt reefer]

what kind of test kits are you using? are they still good (ie. not expired) - I have read a few stories where tests looked good but upon further inspection the test was useless.

See if you can borrow a kit from a friend to test your parameters. Is there any other issues in your tank (algae, other coral acting up?)

cheers;

vince