Eggs(?) on the tank glass.

[iphy]

Howdy.

So, several weeks ago I noticed some clear egg-looking things on my tank glass. I was meaning to take a picture and sort of put it off. Then I noticed that the specks inside were multiplying, which seemed odd in eggs. So, I snapped a couple of shots. Both of these are from up right next to the water surface (and therefore close to the light), and right next to a long-tentacle leather who went crazy, climbed out onto the glass, climbed right up to the surface, lost all his nice brown colour, and has been living there for half a year now. However, none of these factors seem to be related to the egg things because I also have a grouping in the darkest corner of my tank, down near the bottom, not near any other animals or plants. The only thing the two groupings have in common environmentally is that they're both on the tank glass. But, obviously, this would make them easy to see; so there may be some all over the tank on rocks and stuff which I just can't make out.

Anyway, the first one is the whole grouping and the fsecond one is an attempt to get a closer shot. Oh, the actual size of these guys is about 2 millimeters in diameter.

 

[Anonymous]

Some of the little 'nodes' in each pod in the lower image seem to be developing. There are a few that resemble snail shells, and the location of the eggs would support the snail egg theory.

 

[Anonymous]

holy cow that is some macrolens you have on that camera!

 

[Fatal Morgana]

FWIW, I agree with Hwarang that these are snail eggs.

Aside: Hwarang, did your landlord turn on the heater yet

 

[iphy]

holy cow that is some macrolens you have on that camera!

Hrm. Actually, it's just a Nikon Coolpix 885. So, a few years old and 3x optical macro. The trick is to hold really still. Even better is to have a tripod.

 

[iphy]

Some of the little 'nodes' in each pod in the lower image seem to be developing. There are a few that resemble snail shells, and the location of the eggs would support the snail egg theory.

Wouldn't snail eggs hatch out little swimmer-type guys, not little snails complete with shells? I mean, I can't argue with you about the shape, I see what you're saying. And, as far as I know, I really don't have anything else in my tank that's a likely candidate for breeding by laying eggs on the glass. But, I expect snail eggs to hatch swimming fish food, usually.

Also, I've never seen eggs which worked like this. That is, multiple sacs each of which has multiple $foo in them. They're definnitely eggs, though. Some of them now have holes in the top and are empty.

 

[Anonymous]

holy cow that is some macrolens you have on that camera!

Hrm. Actually, it's just a Nikon Coolpix 885. So, a few years old and 3x optical macro. The trick is to hold really still. Even better is to have a tripod.

Still I've used a fujifilm s3000, it has a macromode with 3x optical zoom, and even on a tripod don't think I could ever get that close against the glass with any detail.

 

[Anonymous]

Snail eggs. If you watch them very closely you'll see the baby snails move inside the egg case. I'm not exactly sure what the species name is, but www.ipsf.com sells these as "strombus snails".

I've attached a pic of the eggs and the snails "getting it on".

 

[Anonymous]

I think that not all snails go through a free-swimming larval stage. Some hatch with weentsy little shells.

veliger: a larval mollusk in the stage when it has developed the velum

Aside: Hwarang, did your landlord turn on the heater yet icon_wink.gif

LOL actually we have a new mystery landlord who turned the heat on super early. MmMMMMmmm toasty!

 

[Anonymous]

I think that not all snails go through a free-swimming larval stage. Some hatch with weentsy little shells.

veliger: a larval mollusk in the stage when it has developed the velum

Aside: Hwarang, did your landlord turn on the heater yet icon_wink.gif

LOL actually we have a new mystery landlord who turned the heat on super early. MmMMMMmmm toasty!

Correct...and there are very short planktonic stages for some snails, as well as other inverts; short enough to survive in a tank. Mini feather dusters are a good example.