I regularly do a 25% water change on my tanks, and recently found in the one tank insect like things underneath my gravel. If you move the gravel away you see allot of these things like swimming around. And there are like white things(looks to me like small pieces of wax) floating on the water I have siphoned. My fish is also stressed and dying. Can anyone tell me what this can be please? I don't notice any worms and/or lice on the fish.
Thank you.
Thank you.