red slime algae please help

wrote in message
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So, am I doing something wrong? Should I try the white stuff? Any
suggestions? Thanks in advance for the help.

-Mer


Sounds like you've hit most of the usual recomendations.
The white stuff is likely a type of antibiotic, which will almost certainly
kill off the cyanobacteria, but, as you were told, many aquarists believe
these products will devastate your biofilter. I have used then, and no
biofilter problems, but if you choose to use them, monitor your water
quality carefully. YMMV.
However, your aquarium is apparently a good environment for red algae,
so it would eventually come back, I'd say. If you find the key, you may not
need to use the drugs. g Perhaps you've an excess of phosphates?