So I've recently become very interested in Tropheus, and I'm thinking about getting a tank set up to house them within about a year. I still have a lot to learn before I can do it right. So far, I've learned that I need to get them in groups (at least a dozen) and they're strict vegetarians. I need to have sand substrate, and lots of rocks. What's the minimum/good size tank to have for them? Can you have different kinds in the same tank to make up the group...or do they all need to be the same? I've been trying to find information for care, but it's pretty scattered. Any books or sites that any of you can recommend?
Thanks for any info!