"Couple weeks ago, purchased (apparently foolishly) 3 bullfrog tadpoles with legs to add to my pond."

Cliff, been there, done it and got the T-shirt with the message "Stupid Move".
But it was a learning experience for sure!

We ended up with only Bullfrogs at our pond. They ate our Leopard frogs and our Green Frogs and kept us awake at night with their loud calls. They are definitely the Bully Boys of the frog kingdom.
Bullfrogs have decimated the populations of other frogs, in areas of N.America, where they have been introduced by humans as a food item [frog legs].
West of the Rocky Mountains, where they are not indigenous, they have almost wiped out the native frogs.

We eventually transported ours to a small lake near to us.
Some folks don't mind them at all and that's fine.
I would rather not have them around in our situation, where we can have other types of frogs that are not so bullheaded.
"Horton"

I must be doing something wrong, I have about 5 or 6 bullfrogs that come and go in my pond, never had any issues with them...They are WAY more enjoyable than the tree frogs that hatch every year! Some people "wish" for frogs but if you get a couple of hundred tree frogs all going off at once its about deafening...my pond is only about 3500 gallons and all plants ,fish and frogs seem to be happy together even though it is overcrowded with fish..8 of my original koi are 12-16" and there are about 15) 8-10" and another 15 to 20 smaller offspring...Wish I could catch about 20 of them to make more room for the bigger guys but until I can drain the pond down a couple of feet they are way to fast

" I must be doing something wrong"

Ral923, Why would you think you are "doing something wrong"?

If you,or anyone else, for that matter, enjoys having Bullfrogs around their pond and does not have a problem with them, that is wonderful and it is not the business of anyone else.
Some folks just don't care to have Bullfrogs around because of their nature.

I fully understand how you feel about the noise the tree frogs make.
We have toads by the dozens, making their loud mating trills every spring. I'm sure that noise could waken the dead!
I know from reading the posts here,that there are lots of other folks who enjoy listening to them and they don't mind that "screaming noise" at all.
Each to their own I guess. lol
"Horton"

I would kill to have that many frogs around my pond. Lovely!

That was the sunny side of the pond the day I took that picture. I couldn't believe how many there were all in one place. But.........I never have any eggs or tadpoles. I think my goldfish eat them.

Out here in the West bullfrogs are eating native turtles too. :( In Hawaii they eat native birds!

IF I lived where they were native, I would not keep them and would try to have other species of frogs because bullfrogs are so common and the other species need our help to have safe habitats. Bullfrogs don't need any help, they are a very successful species. Too bad it is at the expense of others....

Bullfrogs are considered nasty and invasive in many parts of the country. Best move is to enjoy a frogleg appetizer.
DO NOT release them to the wild, a federal offense in some places.
Tree frogs may be noisy, but are pretty benign when it comes to altering your local ecosystem.

I'm speaking from west of the Rockies, but anywhere you introduce them, you'll end up with a single species of frog. And a lot less native fauna.

The really sad thing is that you can buy their tadpoles online or have someone send them to you even west of the Rockies were it is a federal offense......

Some people want frogs no matter the consequences. The situation is similar with Red Earred Sliders. They out compete native turtles west of the Rockies and tax dollars and hundreds of man hours are being spent to try to control them. All because people have released them into the wild.....

When my parents got sick of ours (cleaning the filter was awful) we traded them back to the petstore for fish, they were 7 inches across from 1.5 inches when they bought them. Thousands of people released theirs.....thousands more killed them in those awful plastic habitats they used to sell.

Yeah, if they are not a truely NATIVE species (as opposed to introduced), both don't keep them, and don't release them...
Where I grew up there were no other frog or salamander species due to the recent introduction of bullfrogs.

My BF's come and go at will and I have never had a problem with them BUT this year, I found a big ole frog with one of my goldies in his mouth! Then My dog scared a frog back into the pond and was smelling something on the other side of the pond. When I went to investigate, one of my big goldies was laying on the path. I threw him back into the pond and he seems to be ok, but surely the frog had him and we saved him in the nick of time!

So, are leopard frog tadpoles ever commercially available? I've never looked for the tadpoles myself because the leopard frogs moved themselves into my pond decades ago and seem to come and go as they please. I've never had any trouble from them - they don't seem to bother the fish. And they're so pretty.
{{gwi:220318}}

I was kayaking this weekend in central Massachusetts. When we stopped on some dry land we saw quite of few baby leopard frogs. So cute and so green! The way some posters write they are almost extinct. Not where I was so I thought to pass on some good news.

In some areas of the US leopard frogs are officially threatened or endangered.

This list is quite eye opening:

Here is a link that might be useful: threatened and endangered us frogs and toads

Just in case you don't think bullfrogs eat birds...this one bit off more than he could chew.
The beak of the Robin pierced through the roof of the bullfrogs mouth and went into his brain, killing him.
The Robin drowned, trapped in the dead frogs mouth.
{{gwi:180200}}
I have hundreds of BFs around the lotus pond, they eat any bird that stops by for a drink, except when it's a little too big and then they just drag it under water until it dies. Then they spit it out when they get tired of trying to swallow it. Then I have to net the dead birds out of the pond.
Fair warning!

Right now I have 2 Bullfrogs in the pond. I have had as many as 5. I do have neighbors with ponds so maybe the others relocated. I also have 2 female red-earred slider turtles and a male. 8 med. Koi, 2 or 2 goldfish and many many Plattys. I find that the Bullfrogs eat the plattys, which is fine as they reproduce like crazy. They have also rid my yard of snails. (I could kiss them for that. And I think that they eat the baby turtles that find their way back to the pond. (I'm ok with that too, circle of life....). I want the California green tree frogs so I put a variety of smaller ponds around the yard. Each male tree frog is territorial for their own. They will mate in a bucket I have found. No one population is getting decimated so I guess a natural balance has been met.