sorry Robyn for asking before about this but will the frogs really stay under water to hibernate? I dont need to set something up for them? i really like my frogs and went through 10 tads to get 3 frogs :( . Just double checking becuase its around time.

Some frogs hibernate on land while some species hibernate under the water. Bullfrogs, green frogs, and pickeral frogs all hibernate under the water. I have all three species do that. Mine lay on the bare liner or under a few leaves or debris. Wood frogs, leopard frogs, tree frogs, etc. hibernate on land. What species of frog do you have?

i have green frogs. i dont have any substrate in my pond except for a waqter lily pot and 2 cave.

I don't have much on the bottom of my ponds either. The green frogs mostly just lay on the bare liner or under a few leaves or debris. They might hide in your caves.

everything seems good so far. my airetor broke though so im getting a new one tomorrow.

Hi I have a frog question. I just checked my skimmer today and there was a good size frog in it. He jumped in the water when I opened the top. How can I tell the difference between a green frog and a bullfrog? This guy was about 3 inches and dark green with a pointed face. He has some long back legs too.
:D I thought the frogs would be in hibernation still. I live in middle Tennessee and it has been in the 40's for weeks. My koi are all hanging out at the bottom of the pond.

its hard to tell. if could be a young bull or an adult green. i find bulls to be a bit darker.

I can just tell by looking at them most of the time. It's hard to say why. The color is similar during hibernation but bullfrogs tend to be darker. Green frogs have a strong line on each side of the body that goes from their back legs all the way up to their eyeballs. On bullfrogs, it just goes from the eye to the ear (tympanic membrane). On this male green frog, you can really see that line which bullfrogs lack beyond their ears. The line is on top of the ear and extends in both directions:



By comparison, here's a male bullfrog. You can see he doesn't have that line.



If disturbed during hibernation, frogs can still move. If it's in the 40's, they can still hop, just not too fast.

Robyn and Tommy
Thanks for the info. I think the next time I see him I will look for the line. He was very dark green in the skimmer. I have not seen him since, be I hope to see him again in the spring. I know last year we had one that made the gunk sound. In fact we named him Mr. Gunk. :P It may be the same frog, but I don't know. We had bunches of them. There was a little brown spotted guy that spent a good amount of time in the cat tails. I think he was a lepord frog.
Merry Christmas! :D

Melinda