Beautiful plants. They seem to be acclimated already. Are you keeping the mister in the tank permanently? Also, have you decided how high you are keeping the water level?
I am still not sure what caused one of them to melt. Maybe someone else who have experience with these can chime in.
I got your PM after I left for the week so I had already left the water lower, I'm thinking I will keep it slightly above the rim going forward (I think it will really benifit the crypts). I will eventually put the mister in the terrarium I'm working on but I wanted to see how it works so I put it in here. I'm actually going to go sandstone hunting this weekend and try tying the 'shine green' on it and see how it grows, I think the mister will really help for keeping it moist on the rock. I am really impressed with the growth I've seen in the week they have been here, those little fuzzy roots are pretty neat. As far as the one goes I'm not sure what happened to it but the rest seem fine (I guess natural selection was working and it wasn't strong enough, lol)
You have the PC fan inside the tank with all that moisture???
It's a 12v fan so I'm not really worried about moisture and electricity and if the fan fails it cost $5 so I'm not really worried there either, I actually dropped it in the water and it still runs , lol... Current forming a magnetic field that drives the fan is really hard to break the only real issue would be corrosion and the fan seizing up..