Alright, sounds like grounds for an experiment! I'm now adding 5ml of Excel every other day (a 4x overdose), continuing to do weekly water changes, and maintaining a fertilizer dosing schedule according to the EI method (although reduced from the above levels by half). Most of the thread algae does grow back within a few days, I've noticed, so manual removal is both impossible and overwhelming. I've taken a few of the larger easy to remove clumps out, but left the majority of it which is deeply tangled in my moss and plants. I'll give it some time and report back as to how effective it is in clearing out the algae. If it works it will be a viable (albiet a bit expensive) method for those of us without the luxury or pressurized CO2.
Any comments or suggestions on dosing Excel or using it to kill algae would be appreciated!
P.S. I think a blackout is the backup treatment in case Excel overdose doesn't work out. |