i dont need them to live a really long time,but i want them to be healthy and have a fairly long life(at least 5 years)i dont know their genders,theyre about 2 inches long and ive had them for months,it looks they havnt grown,i feed them goldfish flakes and freeze dried bloodworm larvae, i feed them 3 times througout the day.i know what kind of filter i want and where to get it,i want a light.the aquarium has no lid.
WHAT CAN I DO?