Recent content by kgr320

Do they pose any threat to fish in large numbers? I haven't introduced any new water or fish to the aquarium so I don't understand how there can suddenly be hundreds of them.

My fish have been down for the count for the past week, my betta especially. He started with a low appetite and listlessness, but now only moves once or twice a day, stays at the bottom of the tank with labored breathing and no appetite. I saw him flashing once but now he seems just too tired...