both of my glass catfish are not doing well. they are both turning white and 1 of them is laying on the bottom. the one that is the most lethargic, the one laying on the bottom looks like its bent. not like a C but more like ~ . the only thing that changed recently was my scape. i had to pull a monster sword plant and it kicked up a LOT of mulm. no other fish seem to be affected. all the other fish are actually more active and seem happier now because the new scape gives them some room. but any ideas out there as to whats causing it, and will it eventually kill my other fish?