aqua_chem
Aquarium Advice Addict
Especially if you have a smaller school.
Especially if you have a smaller school.
Looks like some of them are not adjusting well. With my anacharis usually if the leaves start to go translucent then eventually the stem will die off. Often times though it will sprout from a new spot along the stem and continue from there, so it sounds like that's what's happening with yours.
Does it still look like this:
With only two T8s (really the light level of only one as they're in series) and placing your plants at the periphery, you're getting that absolute minimum level of light possible. It's very likely just a lack of light issue.