It appears as though my glowlite tetra keeps chasing around the raspora that I've had in my tank for a while now. I added the glowlite about a week ago. The raspora seems to be always in hiding. Is this normal? I was told when I purchased the glowlite tetra that they are both peaceful community fish and would be fine together. Sometimes I have to net the glowlite when feeding because the raspora won't even eat ?