i got them last friday, 3-4 days ago. i have probley 7 or 8 fake plants in them. everytime i give them food they wont eat it. i give the flake stuff which is what the guy at the store says they give em. i also read that mollies thrive on algae too. should i go get some of that too? i dont think they have eaten since i got em. i could be wrong though. im quite new to fish raising so please help me out. i have a black lyretail molly and a silver molly in a 20 tank. thx in advance.