Hey Oleg, it wasn't from you, I got from a RAOK a few weeks back. I've had them floating in one my tanks cause I wasn't ready to plant them when I got them. I'm thinking they are just getting use to the new tanks that they are in, just wanted warm and fuzzy from the folks here that it's normal. The chain sowrds are pretty much acting like the crypts that I planted three weeks ago and they melted right off the back but have been sprouting up new leaves now.
As for your plants, they have been planted into their new home and I'm just letting them get aclimated. I haven't seen any melting from them so far. I may need to get some nitrate ferts because tanks is basically going through a "fishless cycle" so there basically isn't any fish load feeding aside from the organic soil underneath the gravel.