Hello! Due to a recent camallanus infection in my 10 gallon Walstad guppy tank, I decided to restock the tank without any fish. I am currently treating all my guppies in a QT out of the tank and am well aware that camallanus worms can live in my 10 gallon for quite awhile without any fish host, therefore I decided that I would have give all my guppies away and restock my tank with other critters. I currently have some snails, Asian clams, and cherry shrimps in the tank. It have Finnex Fugeray Planted + as a light source, very dense carpet of DHG, lots of bacopas, and some other random plants. Do anyone have any idea what I could put in it that's not fish? I would preferably have something that takes care of mosquito and other insect larvae because this tank have no filter or pump and only has a heater. Thanks!