ok so i have a 29 gallon tank rock sunstrate a $150 filter (for a 40g tank) a few fake plants etc. a heater, and a light. I was wondering if i could house a pair of convicts in the tank and if so what do they eat? like will they eat worms or any other live food? and will they nip at my fingers when i put them in the tank? I HOPE SO lol i like it