You are off to a good start. Make sure their diet is not mainly guppies. 90% of their diet is fish with white meat, krill, shrimp, pellets,catfish, earthworm. Good luck !!i bought this setup for $150 (55gallon tank, stand, gravel, rocks, light, 2x aqua clear 300's, stealth heater, 2 air pumps) i may be new to fish keeping but i think thats a good deal. im only 19 but i see a long future of fish keeping. i have a 10 gallon tank under the 55 to put my feeder guppies and make sure they are all healthy and disease free.