What I used to "cure" red slime in my tank

[GMGQ]

Yeah, I mean by the sounds of it, he talks about dosing something that does kill the cyano. Then you do extensive water changes, so of course the cyano will disappear for a while.

But if you're overfeeding/underskimming, and you have dead zones in the tank, I guarantee you the cyano will come back sooner or later.

Having said that, I know a lot of veteran reefers who just dose chemi-clean every few months, as part of their quarterly maintenance. Like I mentioned, chemi-clean hasn't shown any adverse effects, so people aren't afraid to keep using it. Whereas the jury is still out on maracyn... Just like antibiotics in humans, the bacteria/virii eventually become immune to it.

Originally Posted by Johnny Reefer

Good to know. Thanx. Second thoughts on trying it now.

Cheers,