Hello, it's me again with the questions. Seems like that's all I ever do. I would really like to know why my panda cories are so dark. The pictures of other people's are so pretty and creamy white contrasting the black. Mine are gray. Even the ones in the store looked more natural than mine, and that's pretty bad. Got these pictures this morning, which took some doing because they're being very active. Last time I noticed dark pandas was when I added more without quarantine, and a week later half we're dead. Is there any way to get these guys to lighten up? Is it because of the black substrate (other people's look great on black)? Is it because of the treatment I just finished? Is it because I only have 3 now (plan to get more as soon as I can afford them and a heater for my new quarantine tank)? Sorry, I've had a lot on my mind lately. Both with fish stuff and not fish stuff, and then this little curiosity peaked it's head. Sometimes just feel like I'm not doing anything right. I just don't want to kill them because I suck as an owner.