today, I found bunch of flatworms under the rock when do the water change. I do some searches online it looks like flatworm. not sure how to get rid of them. i got few sps in the tank attached to the rock so it's not possible to move them. they're doing fine. don't see any change or bad things on them yet. so not so sure if it's flatworm. if it's please help me how to kill them View attachment 20665
thanks,
Hien
thanks,
Hien