I started noticing these "spore-like" circles on plants and gravel

[gginnj]

Here are two examples that are on the plants, I also started seeing them on some of the larger pieces of gravel as well. Are these snail eggs, fish eggs or something else?

 

[KarlTh]

More likely snail eggs, although they don't look familiar. Do they stay put?

 

[Lupin]

No ramshorn or nerite snails? Definitely not pond snail eggs.

 

[gginnj]

I never tried to pick them off, but I have seen snails move across them, and they are still there afterwards, as well, my cory's don't seem to be eating them off....

 

[gginnj]

I have nerite and ramshorn, as well as MTS snails. I have about 15 or so snails in the tank (excluding the MTS), I've not seen any eggs above the waterline or anywhere else, aside from these spore like things...They are spaced very evenly apart. I have noticed them for at least 2 weeks now. How long does it take for snail eggs to hatch?

 

[Lupin]

MTS are livebearers so they are not the ones. Nerites would be my guess. If this is freshwater, unfortunately the eggs won't hatch unless in brackish conditions.

 

[gginnj]

After a little digging regarding Nerites, I found: http://www.wildsingapore.com/chekjawa/largfoto/r422fx.htm

How Brackish does the water need to be? I could always setup a smail 2.5 gallon tank
with just aeration.

Thanks

 

[Sploke]

Those are nerite eggs. I'm trying to breed them in water of SG 1.012. I've tried doing some research, but haven't really found anything conclusive about actually being able to breed these guys. I've read all sorts of different things about slinity changes, different larval stages, etc but it all seems pretty speculative. I'm just leaving them in the tank for now, if nothing comes of it after a month or so I might try some other things to see if they help.

 

[Lupin]

Good luck with the nerites.