They JUMP! They're crazy little critters, so much fun to watch. I had a hole in my acclimation tub that I put them in when I first got them, the hole was only about a square inch and I stuck a sponge over it so they wouldn't see the hole. I went down the hall to get a bucket of water to replace the water I took out of my tank to acclimate them in...when I got about halfway down the hall I hear this scream come from my roommate. One of loaches had jumped with enough force to lift up the sponge, get out and have the sponge fall neatly back in place.

They're slippery little things to, you pretty much have to have a net to pick them up becuase they'd slide right out of your hand if you tried to get them that way
Yep, they're compatible with goldies. They just need lots of space because they like to swim around a lot....if they don't have enough room they jump

They also like a friend so if you should get at least two of them if you ever think of getting them.