I just recently bought a Hillstream Loach...my friends and I noticed them at Wal-Mart and decided to save them from the horrible conditions....ANYWAY...I put him in my 10g with my goldfish...he seems to be adapting well, but what I find weird is that he just stays in one general area. He never seems to move outside this area...I'd say this area he likes to stay in is about 3 inches.....is this normal behavior because he will be there for hours. Only when i get up in the morning is he hangin on the front..plz help*GOLDFISH*