I discoverd last night that one of his eyes was bulging out.

This morning when I got home from work, the first thing I did when I walked in the door was to feed them and check on the Tetra.
I went to the "Fish Desease" section of this forum and have come to the conclusion that it is, in fact, "Pop-Eye"
I don't have a Q-tank ( i know, shame on me) Is there a way to treat this without the means of a Q-Tank?
All the water parameters are great and I do weekly water changes every Sunday. Tank is crystal clear and this is the first issue I have had since adding the little guys.
TANKS!