SanityChelle Posted March 13, 2014 Report Share Posted March 13, 2014 I've tried a few of the facebook groups, but noone seems to know what this is and what's causing it. It started to appear on the rocks of the tank a week or so ago, and I've just noticed it appearing on a few of the plants closest to the rocks as well. It's not slimey, and it's not fluffy like BBA, it just looks like someone has been dotting things with a black felt tip pen. I was thinking of scrubbing it off (was hoping not to as my hillstream likes the green spot algae), but now that's it on the plants, I'm super worried. This is my tank at the moment. It's 38L, I do a full bucket water change and gravel vac every week, and dose a quarter of a teaspoon of excel every few days (I got told today that I need normal flourish as well). The lights are on for 5 and a half hours a day. Actually just remembered a week ago I swapped my carbon out for bio media instead. Could this have any affect at all? Serious help is needed, especially now that it's on the plants too. Quote Link to comment Share on other sites More sharing options...
Godly3vil Posted March 13, 2014 Report Share Posted March 13, 2014 Could be some sort of cyano algae possibly? How long has the tank been running? Quote Link to comment Share on other sites More sharing options...
SanityChelle Posted March 13, 2014 Author Report Share Posted March 13, 2014 About six months, maybe a little bit longer. Someone said it might be the lights, but I have LEDs in there. Quote Link to comment Share on other sites More sharing options...
Godly3vil Posted March 13, 2014 Report Share Posted March 13, 2014 Could be the leds, most the cheap ones are no good for planted tanks. I wouldn't think that would be causing your mysterious black algae though. Quote Link to comment Share on other sites More sharing options...
SanityChelle Posted March 13, 2014 Author Report Share Posted March 13, 2014 Ah the LEDs just came with the tank (in lid lights). They seem to be doing alright for most of the plants in there. The red rubra I'm just kinda trialling at the moment, one seems happier than the other. This mystery algae is just kinda freaking me out. Quote Link to comment Share on other sites More sharing options...
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