The GFs mothers pond has invaders!

My girlfriends mother has a pond that she keeps comet goldfish in. She still hasn't moved them outside from the basement where the winter. So the pond has like 1 foot of water and is covered in algae right now. The frogs love it and she has literally hundreds of these tadpoles in her pond right now. Sorry about the glare, it's super sunny and I can't get a clear picture without the clouds reflecting in the water. https://imgur.com/Dtly6WF