I have a blossoming population of them in my 125g that houses 7 Neon Praecox and 1 Bosemani Rainbow. All are still juveniles, but none go after even the small shrimp (5mm or less). Too busy waiting for handouts from me to bother chasing down a meal, I guess :lol:
In my 40g I have the problem of them being everywhere. I have a field of Riccia covered rocks that is getting to be work to maintain (retying the Riccia to the rocks means having to buy a never ending supply of hairnets! :x ). What I wanted to do was remove the rocks and instead use some needlework screen (like folks are using to build moss walls) and sandwhich the Riccia into one large shaped mat that I could lay down on the gravel, weighted down with a few small stones.
Today a huge bunch of Riccia broke free from its rock and while trying to fish it and the rock out I was constantly brushing shrimp away. So I fear that if I try to lay down a large mat of Riccia I'll be either trapping, or crushing shrimp underneath it. I guess the alternative is to cut the screen into smaller mats and place a number of them down instead of trying to put down one large carpet. So tomorrow it's off to Wal-Mart, or the craft store for some screening.