Is Danny my albino cory alright? He seems more still than the other one.
Nicki zooms round the tank while danny normally stays in that area or goes to another palce and settles down their. Also i've heard they like to be in groups -mine never hang round with each other really. Is that bad?
It's hard to say...he may just be a little shy. They do prefer to be in groups, and are much more active when they are. Have you tested the water quality to be sure the readings are OK?
Nitrate(dark red) is 40ppm on my test kit. I'm not sure it's the same for you. That shouldn't be a problem, but I like to do water changes to keep nitrates around 10-15ppm. Do you have room to add a few more, to make a group of 5?