Could. I was looking at the Tylo's... Couldn't find out if they are sexual or asexual... isolating a color variant would be cool but there is a lot less genetic variation in asexual organisms...
OK so it turns out tylomelania spp are sexual though I do not know what the dimorphism is or how to differentiate the genders. I think this will have a new thread as these critters are fairly new to the hobby and totally fascinating. I've seen pictures of some cool variants but there aren't that many in the US...
I am starting to re-think the tylomelania species... You kind of have to have a species tank for them it seems... Maybe I will put them in the 10 gallon. So, for $60 I got:
-Iron stand (I know)
-20 gal tank (re-built... orange peel textured glass on the bottom makes me nervous but I am sure it will be OK.)
-10 gallon tank that fits in the bottom of the stand
-Heater for each tank - "Elite"
-Gravel
-Cheap a** whisper filters
-light hoods
-clump of java moss
-"aquatic" plant - the green/white striped kind
-Anubias sp? - Unidentified plant
-A bunch of fake plants
Y'know, dwarf crayfish (CPO) would be nice in that tank, with some added rock/wood/plants. They even get along with shrimp! Add fifteen or so habrosus corydoras (I'm obsessed, what can I say) and call it a day! Just kidding (do it)!