I have had a bad case of thread algae in my 10 gallon tank for a few months now, it started out as just a small cluster in my moss and has spread everywhere around the tank. I've tried manually removing it but it is strong and often rips out the plants to which it is entangled in. It also breaks easily and is, sadly, everywhere. I removed most of it before I left on vacation but it rebounded and looked worse when I got back:
I thought it was CO2, so I upped the CO2 by replacing my DIY 2 liter bottle every week and by injecting the CO2 directly into the filter intake. Plants are pearling like crazy, but the algae keeps growing too. As for ferts and parameters:
Weekly 40% water change
Dosed every other day:
1/4 tsp K2SO4
1/4 tsp KNO3
1/8 tsp Plantex CSM+B
1/16 tsp or less KH2PO4
normal dosage of Excel
pH 7.0
KH 80ppm
GH 50ppm
Nitrite 0
Nitrate 20-30ppm
72W screw-in CF for 9 hours a day
Any ideas on what could be causing it, how to remove it, or how to kill it?
Thread Algae Rebounds 
Threaded Mode
