Yup, the crypts in the first picture are Green Gecko's. As you can tell from my flora list, I'm definitely partial to crypts.
I actually just bought a Crypt. Nurii pahang mutated off of Speedie a few days ago and it melted away to almost nothing within 2 days. I poked and prodded around in the substrate and was able to find a tiny remaining piece of the rhizome with a few small roots still attached.
I carefully removed it out of the substrate and have now planted it emersed in some clay and aquasoil in hopes of saving it. Hopefully I can salvage it and get it settled submerged in this tank in the next few months because I really like the look of that particular crypt. Crypt melt drives me insane!!