If they are African Clawed Frog you will eventually need a 40-55 gallon for 6 adults. A 10 gallon is a minimal size for 1 frog. They like to swim and they put out quite the bioload due to messy eating and poo. On the other had if they are dwarf frogs a 10 gallon would be fine if they are the only thing you keep in there. Do you have a pic?
Your blog says Leopard frogs. That is an entirely different section of the forum.