i got a 7inch male red devil i justy got from a friend a week ago i put him in a 75 gallon tank i had running for about a year now water is great he is happy swimming all over the tank moving the sand around his rack caves , anyway i breed my own meno feeders i give to my oscars 2x a week and hakari gold & hakari staples but for some reason the red devil dont eat the cichild sticks from tatra or any hakari product just feeder menos? what can i do...