Could Phoslock be making my BTA sick? It is all droopy and has been that way for about 3 days. I just tested my water and everything is within spec except my ca which is a little high. My lighting is 260w/48000k(4 compacts) and 260w of actinic(4 compact)Looks ad though the BTA is loosing his color. Any suggestions as to what might be happening?