Alright, so the project I'm looking to tackle is that of three small tanks to turn into plant-only terrariums of different kinds. They're all slightly different sizes, but they're all around the 2 gallon mark and all still more or less watertight. I'd quite like to do one of each type to start off with - desert setup with some little cacti and succlents, standard indoor/exotics setup with some nice little foliage plants and maybe some african violets or something, and a carnivorous setup with perhaps butterwort or sundew flytraps of some kind.
Since looking around at what I could find about it on the net, these are my questions -
1) In general, is there a way to make sure the spagnum moss is from a renewable source? It sounds silly, but I don't really like using it or peat due to the damage overfarming can do, from memory. Are there alternates I can use in my setup that will work the same?
2) Is it possible/okay to do a desert-style terrarium in a watertight container? All the instructions I've run into so far seem to indicate I use a regular dish-shaped pot, but isn't that rather more of a planter than a terrarium?
3) How easy are butterworts to look after? I'm aware that some sundews are cold-hardy and that Venus Flytraps seem to need overwintering in a cold space - which I wonder wasn't what I've been doing wrong all these years - and that all carnivorous plants are a bit delicate in that they need distilled/rainwater to be steeped in, but I can't seem to find much about doing a little setup in the tank I described above.
4) I don't suppose it's possible to have a sundew and a butterwort in the same setup, is it?
Thankyou in advance!