Eggs?

[LFNfan]

This has been on the glass in my three-week-old aquarium for about a week. Inhabitants: two ramshorns, and recently some tiny white dotty things (copepods?).

Tank is second hand and I guess maybe it was a remnant from that which I didn't clean off properly.

Real size is about 4mm long on the longest side. The close-up was taken through a loupe.

Any suggestions about what is growing much appreciated.

For context you can see it circled in the tank shot.

 

[Fishfur]

Snail eggs. No question about it. Laid quite recently by one of the ramshorns and there will be many more clutches like it to follow.

One can see the embryos within them.

 

[LFNfan]

Wow, awesome!
How long till the embryos turn into tiny snails?
Thanks again

 

[Fishfur]

Depending on temperature, from 1-5 weeks but when they hatch they are so tiny they’re just barely visible. But they grow fast.The warmer the water the quicker they hatch.