I am new to the aquarium world. I began with a 4 gal tank with 3 White Cloud Minnows and a Ghost Shrimp. These poor fish looked miserable, always swimming in the corner so I decided to upgrade to a 10 gal tank and get the Minnows a few friends. I now have 6 White Cloud minnows, 2 Platies, and 1 ghost shrimp. I did not cycle my tank properly...I got impatient and added all of the fish within 2 days of setting it up. I added the White Cloud Minnows first, they were fine, 2 days later I added the Platies. Instantly I noticed that the sunrise Platy was hiding out and not eating as aggressively as I had read Platies eat. 2 days later I observed the panda platy flash and scratch himself against the rocks twice. Today (the next morning) I witnessed this same fish flashing several times, so Ive been on the internet since trying to figure out what is going on. My sunrise platy is also flashing/scratching now. The white cloud minnows are so active its hard to tell. I see no other signs: no white spots, no obvious labored breathing, no gold dust, not holding in their fins. The only signs I see are flashing/scratching, fatigue (not very active and hangs out either near the bottom of the tank or near the top). The gills may be red...but when I look at photos of these fish their gills appear slightly red anyway, like they are wearing blush. So I was thinking parasite/velvet because their are no spots. I bought some copper treatment, but after reading several forums I am debating if I should use any treatment? Can anyone help?