I have 6 Tiger Barbs, and 2 Green Tiger Barbs. I always have fed them varieties of fish food. From flakes to crumbles to treats like bloodworms, and occasionally a tubefex worm cube. I read today that i should also be feeding them some Brine Shrimp. What exactly are brine shrimp? How hard would it be to raise some myself? I have extra tanks! A 1gal, (soon) a 10 gal, and a 20 gal. Also, would a 20 gal be a good starter saltwater tank? I have never had one before. Thanks!