I used to feed my fish a lot of black worms, they were spoiled and almost ate them as a staple diet. This was about 6 months ago. I had the plastic cylinder feeder that attached to the tank glass.. and would drop the worms in there and the fish would eat them through it. In the process, some worms would be pulled through and land on the gravel.
Now when cleaning the gravel.. There are still living black worms down there. I don't believe any of my fish are eating them. Everytime I do a water change and vacuum the substrate their is still an abundant amount of black worms in there.
Are they causing any ill effects? How long is their life cycle? If they are causing ill effects, any way to get rid of them without having to completely dismantle the tank?
Now when cleaning the gravel.. There are still living black worms down there. I don't believe any of my fish are eating them. Everytime I do a water change and vacuum the substrate their is still an abundant amount of black worms in there.
Are they causing any ill effects? How long is their life cycle? If they are causing ill effects, any way to get rid of them without having to completely dismantle the tank?