i would suspect ferts, lighting or a dirty/insufficient filter first in conjunction with the idea it was introduced in the first place. i actually heavily aerate my 30 to keep my co2 sufficient and stable. so, unless you're injecting i wouldn't think surface agitation would be the cause.
in your case... low light, no co2, no ferts and usually fantastic advise... i'd assume a little ferts will go a long way.
i completely agree. i see people on here trying to do non-co2 setups with 3 t5ho bulbs asking how to rid their tanks of cyano constantly it seems. and being told to use em or maracyn. let's be realistic here... no co2=low light and vice versa. i would be completely off to assume that one could control it without drastic measures before it gets out of hand in a high light tank but in a low light setup it's really fairly simple. so, why someone would try low light principles in a high light setting... while looking for low light benefits (no money for co2, less trimming/pawning over the tank, etc.) is beyond me. often 1 person mentions lowering the light intensity somehow and 5 or so mention em/maracyn... but it's not a high light tank by any means except the lighting... and then the op is eventually forced to succumb to high light principles to make the tank work... or give up. :huh:
the worst part about it is these tanks/posters usually are posting shortly after with their "new algae" after "beating" the old cyano... or whatever. :screwy:
rant/over, sorry. :uhoh:
