Cattleya orchid Brown on edges of the leaf.

[Justright1]

Hi!. I have owned a cattleya orchid for about a year now. The plant was not doing well in its original potting, the leaves started getting black tips which I assumed was black rot.

I trim the affection off, and the root system was really bad but there was new growth I use hydrogen peroxide to clean the roots of any infections and have it in a temporary pot. I was then going to transplant the plant on a mount and put it in a orchidarium I am building, and now I find wrinkly Brown lines on the leaves and the new Roots shriveled up and the old ones get this white hair on it.

I assume it's some sort of bacterial infection on the leafs? I don't know how to treat it, and if I trim it off is it okay to put it in a orchidarium with other plants, or would it just infect the others.

I'm sorry I'm asking so many questions, but I really need help with this orchid.