Hi,
I have had what seems like a parasite attack on my aquarium. There seem to be leech-like parasites which attach themselves on my tetras and then it is followed by the tetras being lethargic, and eventually dying. Has anyone had any experience with this? I have a 16 gallon, planted tank with a shrimp population of about 50. Somebody had suggested a copper sulphate based solution but I fear that will kill off all my shrimps. Can anyone help?