My jag loves him some earthworms. I only feed worms april-october when the worms are up and about, I am too cheap tp buy them, I just dig them up myself
we have a wormery in the garden it's just a largeish plastic tub with holes at the bottom,damp newspaper and pestiside free compost. then u get some worms and they breed like mad. you can throw all your left over veg in there and they eat it right up
I don't feed them to my fish
Fed some to my warmouth this past weekend. I'll also go out by the patio light at night and grab whatever's flying around. In about another month and a half I'll be feeding him June bugs. Last time I had a tank, I had an oscar that loved june bugs.
I only did once when I had native species. But from what I heard it is ok to feed them every now and then you just have to be careful where they come from and of there quality. You can introduce disease and other unwanted factors into your tank if your not careful.