right. i am new to fish tanks. had koi ponds for years tho. well, i have 2 tanks, one i was hoping for my main tank and one for a fry tank but im not sure if they are big enough? i want to breed guppies . my main tank is 72 litres- 19 gallons and my small fry tank? is only 12.4 litres- 3.5 gallons. what do you think? any advice on breeding guppys in general would be great 
