Disease? Help

  • We are currently upgrading MFK. thanks! -neo
all the fishes are fine except for the scrape marks they have on the side of their body. I feed them floating hikari sticks and sinking pellets. they are not breathing heavy. I'm just wondering if there is something attached to their skin that makes them itchy like parasites or something coz i've seen some kinda like a worm swimming in the water.
 
Hm... then it could very well be parasites. As for the thing swimming in the water, google 'hydra' and read up on them - could be those.

Really hard to tell from just descriptions alone, and their odd swimming could really be of any reason... some of my fish did that a while back once or twice, but then stopped completely.

Hm...
 
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