I have read the article about ciclids and loaches incompatability.
My friend just had a few questions.
1) He was wondering if these two species are compatible?
2) Or is there another type of loach that may be more suitable to live side by side with an Oscar?
3) If possible is there any type of fish similar to an oscar or dempsey that may be more compatable for loaches?
4) I noticed someone had a blue dempsey alongside larger clown loaches with no problems. If anything is it more advisable to get a smaller type dempsey that would be more compatible with loaches?
My friend will probably get my old 55 gallon tank once I upgrade to my 90 gallon. I don't believe he wants more than 4-5 fish in this tank so that they have room to grow.
Any suggestions or advice would be greatly appreciated. The only information I know is what I read in the ciclid/loach article on this site. So I wanted to direct this one to the pros...Thanks.

I have already informed him that ciclids are out of the question. However, he thought it might be worth asking. He is willing to part with the loaches over the oscar. I think he is more into that primal instinct idea of watching the feeder fish get chomped....lol