I got a bunch of Crypt. Wendti a while back, put them in 3 different tanks. All were doing well, but the best by far, growth wise were the ones I had in my hospital tank(10 gal.).
Three days ago they melted down......no idea why....just completely gone. Hopefully they will come back later. Mean while the others are doing great......go figure.
I've learned that the slightest change in conditions, can sometimes play havoc with plants. So, I bring 'em home and plant 'em. If they do well I keep them trimmed and watch them perform. If they don't grow worth a crap I chuck them and go with what works for me. There's just too many varieties out there to fret over one type.
I'd say give them some time and if you don't see any results....chuck 'em Beth.
Len