dig in your backyard for 5 minutes. just make sure you haven't treated your yard with pesticides in a long time. On a warm and rainy day, i usually find around 10-15. A free summer/snack for your fish!!
u can feed ur fish lizards, cocoroach, any insects. Worms hmmm
yah somewhere have to be wet to find worms. make sure its ur fish mouth size.
If not than chop it to their mouth size.