Hi everyone, this is my first post here, but i have been reading for a long time, but never posted, well i have a 110 gallon with a 8" arawana, and a 9 " motoro Sting Ray, a 4" discus, and a small pleco, and i was just doing a water change, and when the water was down, i noticed all these little bugs crawling on the glass, when i flick them into the water i couldn't even see them, but i could see maybe a 50-100 on the glass, i have a feeling there from the night crawler I've been feeding the ray but i have no clue, anybody know anything about these, and do you think there harmful? i have been testing my water frequently and it is good, ph is around 8, nitrite 0, ammonia 0, nitrate around 10 ppm
any info is greatly appreciated
Thanks
any info is greatly appreciated
Thanks