I just got 2 tiny, like 1 in climbing perch, or ctenoma(sp). They are in a 30g which houses my shrimp colonies. They are going to eat the shrimp hopefully because i have 3 tanks of shrimp at the moment and we got extra fish in our order. Right now i have some Omega flakes i feed the shrimp with, will they eat that or whats a better source of food for them? until they start to eat the shrimp.