Question
I have a freshwater aquarium which I added plants and two nerite snails to approximately two weeks ago. Today I noticed two baby snails -- one about 2mm long, the other about 1mm. As noted I do have two nerites, but expected they wouldn't reproduce in freshwater (and believe they came from freshwater prior to aquiring them--however I'm not 100% certain).
Both appear similar to--their feet are slender and extend behind their shells coming to a point, and their tentacles are long. I struggled to get a photo using a loupe and a phone, but managed to get a couple pictures.
Here's a closeup showing the foot and antenna (as well as some very small worms at the bottom-left -- hopefully Rhabdocoela).
And here's a less zoomed photo, with the both snails (the smaller of the two is quite blurry--right at the meniscus of the water above the larger snail).
Thanks for any guesses!
Answer
It is a bladder snail,they grow to about 1,5 cm in lenght and can live for up to two years.
They multiply fast but they mainly eat waste products so they are not a threat to your fish and plants,you will over time get way too many of them so you will have to remove them to keep the population down.
source:https://en.wikipedia.org/wiki/Physella_acuta
If you want to remove bladder snails(and many other types of snails)the best solution is to introduce a few predatory snails into your tank,the best type of snail you can use is Anentome helena https://en.wikipedia.org/wiki/Anentome_helena.
Answered By - trond hansen