guppy fan
Fishaholic
I just picked up my gravel vacuum and noticed that there is a bit of mold in the inside. It is a very dark green, possibly black, color. Other than that it looks just like the mold that you would see on bread. Anyone know how to safely get rid of it? I'm not to worried about my fish because he hasn't been exposed to it yet, but I would like to change his water today. To prevent this from happening again, does anyone have any ideas of how to keep the inside of a gravel vac more dry?