Cheers for the help folks.
only fish keeping since june so everything is new! I have 7 shrimp in my normal tank (along with fish), and one of them was carrying eggs..which where gone the next day. i think 'predators' made her drop on purpose (from reading)?.
never even occurred to me about feeding sparingly!. so in ways, dont make the tank some sort of spa for the shrimp ha, just enough for them to get on ha.
in relation to selling, my fish store said they wouldn't take any, but i've since (since reading replies here) found one or two facebook groups that will atleast let me offload them if it happens.
well yeah im sold, time to pick some shrimp!!!!!