Another Pic
Here's a shot of the full setup. I'm using standard 1020 gardening flats with no holes in the bottom. This is covered by a 6.5" high lexan humidity dome. This particular setup has some 3" clay pots and some 3" net pots. I'm using the net pots with coir lining in all of the new plants that I've added since this was setup.
Because these are blackwater Crypts in this setup the pH needs to be about 4.0, the lower the better. The soil is an equal parts mixture of coarse pool filter sand, sphagnum peat moss and silver maple leaf litter. The leaf litter should be old. I went into the woods behind my parent's place and dug underneath the leaf pile from every fall to find the nice black half decayed leaves. Something about the mold therein is key.
The water is pure water. RO, distilled, DI or rainwater would all work well. I mix in about 1/4 of the recommended dose of miracle grow (the regular one). Blackwater Crypts don't like excess nutrients in the water. I mist them about once a week with this same solution from a spray bottle. Lighting is a 2 bulb 4 foot shoplight with Phillips 6,700k daylight bulbs.
The empty pot in the right front was a Crypt that was not blackwater. I tried it anyhow and it promptly melted.
That's about it. It's pretty much set it and forget it. Trim off old leaves every month or two and repot when they spread too much.