Eggs?

They do look like eggs - snail eggs. Are the white blobs encased in a clear jelly? Some snails lay their eggs in a blob of jelly but fish don't. The eggs in your photo look like the eggs laid by a snail that came into my tank with a plant (a bladder snail) and I think ramhorns also lay eggs in jelly, though I've never noticed it with the tiny ramshorns I've had for years (too small I think).

If they aren't in jelly, they could be tetra eggs, though if they are I'd expect them to be eaten quite fast.