HELP!!! My 6 month old tank was doing beautifully. Just did 25% water change (do them weekly) no new fish added in weeks. Water parameters all normal. Woke up to find strange white specks all over glass, and they break up and multiply! Anyone have any clue?
They stick on the glass and separate, and don't look like they move much--not with the current. They are oval or round and are clear with a darker center. I think they might be "arcella" amoeba.
