Catfish won't school?
I have a school of five glass catfish, and four of them typically school together. but one just won't do it. he stays inside one of the ornaments hiding all the time. it's been like that since i bought them and i just can't figure out why. they were all kind of shocked and freaked out when i brought them home but that's to be expected. i've had them for a few weeks now and the fifth one just doesn't come out. is there a reason for that, or is he just weird?