Ottos eat all your GDA?? I have three in a 29 and they don't even make a dent.
Also for those without the patience for Barr's method, I seem to have found something that seems marginally effective.
Overdose Excel to your tank and then immediately after you do that scrape all the glass- I use a credit card. I thought this might work to kill lots of the spores and it seems to because this week the GDA is coming back way slower, but alas it is still coming back. I am going to repeat this process and see if over a few weeks I can't eradicate it completely.. I doubt it will work.. but it's worth trying.. I just couldn't stomach looking at my poor tank all covered with green funk on the glass.. was too much to handle for more than a couple weeks.. |