Mite-like Brown Bugs Attached To Betta Fin
I've had my betta since April 2018. I just recently switched him over to a 5g fluval spec v December 2018. There's always been copepods/seed shrimp and tiny flatworms in his tanks.
For the past... maybe 3 weeks i've noticed some tiny brown bugs that resemble mites or lice that stay around the substrate (i've been having algae issues on fluval stratum) but I never see them move. I haven't added anything new to the tank so i'm not sure where they came from.
This morning I noticed one of them attached to the middle of his long fins and another one attached to his pectoral fin. They don't move. Obviously i'm panicking because they're not parasites but some type of bug.
Does anyone know what they are and how I can kill these bugs? They're the size of a tip of a pen. I've tried to search around and i've seen names like Hydrozetes but i don't know how to kill them. Would PraziPro work? This is the first time i've seen them on the betta.