Re: cyano
 

Never had a Fluval, but take the thing apart, remove the filter media and squeeze the living daylights out of it in the outgoing changewater. If you've never done this, you may find that the media needs replacement. If this is the case, put the media back in and make sure you have new stuff for your next water change.

Hopefully, others with Fluval experience will chime in here with REAL cleaning advice :mrgreen:

cyano
 

So would you even bother using the eurithromyacin right now, or try all of the other things instead, or both?

Jason, the cyano isn't really doing anything bad, so using chemicals to remove it quickly isn't a good idea. Make the source go away, and the cyano will go away. It just takes time.

cyano
 

Ok, sounds good. Thanks guys.

reply
 

Brad said, What about using it to run the phosphate sponge? If anything it should add extra flow right?

Re: reply
 

That would be fine, as long as the media wasn't left in long enough to culture a biological population. Ad yes, it would add flow, but there are much better devices for adding flow.