Q: W wrote,
I think my tank is infested with parasites. There are tiny white worms crawling on my aquarium glass. Should I treat with Rid-Ich or another parasite medication?
A: It sounds like you are describing planaria. Planaria are small freshwater organisms that are found all over the world and commonly make their way into home aquariums. They are non-parasitic and don’t pose any sort of a threat to your fish. They tend to creep up when there is an overabundance of nutrients due to overfeeding.
Increase the frequency of your water changes and decrease the amount of food you are feeding and you should quickly notice the planaria disappear without the use of chemicals that may cause unnecessary stress to your fish.