My tank is 29 gal, heavily planted with DIY CO2 and daily liquid ferts, including Flourish Excel. There are 28 fish, mostly peaceful tetras and some rasboras, all active, especially the three new baby X-Rays, Water is PH 6.0, and ammonia, nitrite, and nitrate always at 0. The tank is 8 months old and never shows algae on the rocks, driftwood, or plants. I could probably go two weeks without scraping the glass before it would really be noticeable.
What I have noticed, however, is the very gradual development of what I take to be a dark green algae beneath the surface of the soil, and mostly at the end of the tank that is most heavily planted and therefore receives the least amount of light (55 watt AH Supply Kit, 10 hrs daily). It doesn't seem to be a problem, but I am very curious about it, especially since there doesn't seem to be algae anywhere else. Does anyone know what this might be, and what causes it? Thanks again. Tackful
What I have noticed, however, is the very gradual development of what I take to be a dark green algae beneath the surface of the soil, and mostly at the end of the tank that is most heavily planted and therefore receives the least amount of light (55 watt AH Supply Kit, 10 hrs daily). It doesn't seem to be a problem, but I am very curious about it, especially since there doesn't seem to be algae anywhere else. Does anyone know what this might be, and what causes it? Thanks again. Tackful
