protozoa

Does anyone/ microbiologists know what these things are, I believe my fish have a bacterial infection, just trying to find out if anything in these pics are worry some? And what to look for when I do a skin scrape. 1. 2.3.4.5.6.7.8.9. These are just from my rock and water in tank: 200x -800x...

There is about 100 gallons total water volume in my 125g tank. I would like to know if this will cut down on the number of protozoa and parasites.