I've been battling this stuff for months now and have have lost a couple frags to being choked out by it. Resistant to everything but a hard scrubbing and then will return a few days later. PO4 and NO3 parameters are well within acceptable limits (Hanna, Triton). Rock is BRS Pukani and HAD been treated with Lanthanum prior to DT introduction. Current regimen includes WC (RO/DI), GAC, cuc (Trochus snails, Tuxedo and diadema urchins), an increase in water flow, and manual removal. Any other suggestions welcomed. |