Just popping in to say that bloodworms are NOT the first larval stages of mosquitoes. Bloodworms are a different aquatic larvae (some form of midge) altogether.Mosquito larvae are eaten by most fish (bloodworms are the first larval stages of mosquito I believe) it's the nymphs you have to watch out for. I think mosquito rings might work but I'm not 100%. You can usually get them at agriculture stores and many hardware stores. I usually get any number of larvae in my outdoor summer water features and have had hit or miss success with said rings. They haven't harmed my fish, tadpoles or frogs any.
Found out why I thought bloodworms were mosquito larva- midge flies are also known as blind mosquitoes. I must've saw that somewhere before and didn't separate it. It would make sense to be a midge fly of some sort considering you had what looked like a live bloodworm in the tank. Did you use a dirt bottom for your tank by any chance?Just popping in to say that bloodworms are NOT the first larval stages of mosquitoes. Bloodworms are a different aquatic larvae (some form of midge) altogether.
Can't help with ID of the rest of the things you've got. Only thing I can think of s the "weird wormlike ones that collect debris on what appears to be their butt", which, caddisfly larvae?