Re: Old tank syndrome? I agree with Bert, I did the same thing with my 40 gal. which also has (Eco), I thinned out a back corner that was packed with vals. and cleaned out (gravel vac.) the mulm and debris, after that, the little bit of bba and thread algae that I had has been reduced. All that debris just seems to add more nutrients for the algae! I hope this helps and you can provide us all with some updates, yours is one of my favorite threads to follow! |