Help! My friend had nowheere to put his new baby guppies, and i had a extra tank. A hexigon 35 gallon tank and a 2 gallon tank. Whitch is better for the babies? What do i feed them? i have been feeding them crushed yup betta pellets and i put a few pinches of tropical flakes put them in a zippy bag and crushed them by rubbing it in between my fingers.What should the temprature? and is it safe to put new batches in? they are a week old. And when do the get their color? when can you sex them? thank you for your help!