I have two swordtails and I'm wondering what to feed them. I currently feed them frozen bloodworms every few days and fish flakes the rest of the time. I also give them frozen algae, frozen beef heart, fresh veggies and daphnien every now and then. I'm not sure how great this diet is though. Some places say swordtails need more greens, while others suggest more meat. Are there any experienced swordtail keepers out there with some tips?