Help my loach

[Belenn]

My loach has been laying at the bottom of its tank for a week now. He barely moves around and has been breathing heavily. I noticed today after I moved him to a new tank by himself, that he has red dots on the side and bottom of his and it appears to be reddish.

[Autumnsky]

Hi,

How is it going?

It has been awhile.... water changes and having near perfect water, safe with no ammonia, no Nitrites and low Nitrates under ~40.

So a series of water changes, would likely be in order.

Did you see any worms around the anal vent? In the bottom of the tank?