I will check Shorty. Maybe a tough question to find as most studies are done on big waters with multiple species. IIRC several of those studies cautioned about RES and PS in the same water but I think it was with BG present.
teehjaeh57 in this case the cross would need to have pharyngeal teeth/crushers to eat the snails. I don't know if that gene/trait is included in any of the RES or PS Xs.
Not to go out in left field but I just noticed a post on darters on the NANFA forum. Seems darters are murder on snails, in this case rams horn snails. I guess you can't keep a rams horn snail in an aquarium with darters.
