At what age/size do Male Bullfrogs start croaking?

[habeeb]

Thank you for the replies guys! I just thought I was the only frog nerd in the world, I'm glad I was wrong! I'll take some pics and post them later, the only reason I said that I think he's male is his growth rate. He is barely a month and half old and is already 4". This seems far to quick if he's only going to end up as a 4.5" female surely?

with that growth rate u can lean towards male more than female...it took my female 5-6 months to reach 4 inchs and is kinda stuck there lol my male is about 6 months and he is 6 inchs...have u done a substrate change?? usually when u do use warm water and it will make his tank very humid and u might hears him calling soon after...mine always does after a sub change lol

[bullfrog1986]

Im gonna change my sub on sunday and see if he croaks.. hope he do :S

[stuartrobertson]

Ahh, great shout! I'll do that at the weekend! Can you also tell me what size water dish/tubs you use? I'm currently using a medium exo terra water dish but im thinking of making the terranium half and half using a cat litter tray. What do you think?

[habeeb]

ellis: how big is ur frog??
stu: i had him in a little rubbermaid lunch bowl thing...but not i have a plastic paint roller tray as their pool lol anything will be fine for ur frog as long as he has bout a inch of room from the sides while sitting in it

[stuartrobertson]

He's just over 4" atm. I've just finished Giant African Bullfrogs: Life History and Captive Husbandry by Mailloux and Vosjoli, it is so concise it's unreal so I'm thinking of changing a few things. Give it a read, you won't be disappointed!

[bullfrog1986]

Hmm not sure how big he is ill have a look tonight. I might even clean him out tonight too..