That’s…pretty much it. They must be kept in non-porous pots and trays (glass or plastic), water TDS must be below 50 ppm and keep water in the tray constantly. They will even bloom with gorgeous little flowers. No fertilizer ever, just bugs.
I can’t emphasize enough a sunny spot. This window faces southwest and so it gets 8 hours of direct sun. This helps with growth and also makes the mucus shine which seems to attract the bugs.
hahaha see! All kidding aside as long as you have an RO system you’re probably fine. I went for years making a gallon or so at a time with a sink adapter and collecting rainwater, but my background is in water and control systems, so I got bored and took it to far.
If you DO go for a full bog, I recommend those concrete mixing tubs you can get at home depot, and some bulk head fittings from amazon. A few things to watch out for are:
I have all my “residents” in individual pots with sphagnum, so there’s quite a lot of water, and lots of room for algae growth. I’m in the process of replacing one of the bays (the mixing bins I mentioned) with an artificial media I can grow a living moss bed across (no sunlight to the liquid phase means no algae), but I’ve noticed that does encourage slime molds. It also encourages fungus gnats but it being a carnivorious plant bed… that hasnt been an issue.