Konrad Michalski
Member
Hi. I'm not quite sure whether it is GSA or GDA. Also what could cause it? It appeared just after I trimmed my hemianthus carpet? My light level is slightly high (2x39w for 8hrs and in the middle of that additional 2.5 hrs with 2x39w) as for my 180ltr tank but I have not had any problems before.
It is mainly on the rocks but possibly can't see it on the plants for obvious reasons. Thanks for all the suggestions.
It is mainly on the rocks but possibly can't see it on the plants for obvious reasons. Thanks for all the suggestions.
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