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BobC63 
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Joined: January 17 2007
Location: Lehi, UT
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 Topic: Lil' Tiny Snail Eggs
Posted: June 08 2007 at 7:21pm |
No big deal, but 2 members of my "clean up crew" (Cerith snails, I think) starting laying eggs on the back glass... looks like tiny strings of pearls...
do they actually 'hatch' (normally)?
can they survive to adulthood without any special intervention?
Like I said, no big deal, but the kids think it's exciting; and I look at it this way - when animals start reproducing it usually means they are "happy" with their living conditions...now, if my razzlefrazzlin' brick'nbrackin' toadstool would open up and extend some polyps then I'd be "happy" 
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- My Current Tank: 65g Starfire (sitting empty for 2+ years) -
* Marine & Reef tanks since 1977 *
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Mike Savage
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Posted: June 08 2007 at 7:48pm |
Yes they will hatch and you will see many tiny snails on the glass after lights out. A day or two later they will be gone having fed the tank.
Mike
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Posted: June 09 2007 at 4:16pm |
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I have alot of snails that are about 1/16"-1/8" in size in my tank that could have only come from those tiny eggs because I never bought them and I haven't added new rock to my tank for at least 1.5 years.
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KeoDog
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Posted: June 10 2007 at 10:13am |
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When I set up my first tank, my snails were always laying eggs. Many of them matured to adults (maybe several hundred). That's the only time it happened for me.
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Kevin Kunz (Sandy, UT)
300g reef
"A trade by which one gains and the other loses is a fraud." Ayn Rand
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Mark Peterson
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Posted: June 10 2007 at 1:27pm |
Over time you may notice small cerith snails that you know you didn't buy. If you use a magnifying glass you will see that there are about 10,000 eggs per six inch string.
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Bryguy514
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Posted: June 11 2007 at 4:28pm |
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Do snails just lay eggs on the glass. I had a snails shooting out what looked like tiny micro bubbles for hours looking closer they looked more like eggs. And another snail looked like it was injecting something that looked like smoke into the water. Is this another way of reproducing??
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taylorwaldron
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Posted: July 01 2007 at 6:11pm |
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i have had a bunch, a few have made it to 1/4 in long or so, the others where fish food, my blennie loves em!
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www.taylorwaldron.com
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Mark Peterson
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Posted: July 03 2007 at 10:38am |
Margarita/Nerite reproduce by broadcasting the eggs and sperm. That means they spew their gametes into the water. Small fish and coral love eating the eggs and sperm.
Astrea lay small egg cases on the glass and rock. Each egg case contains 15-30 eggs. They hatch and crawl away, only to be eaten by hermits and shrimp.
Cerith lay an egg string on glass and rock as pictured above.
Edited by Mark Peterson - July 03 2007 at 10:39am
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Posted: July 03 2007 at 3:00pm |
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I was analyzing my refugium last night and saw a bunch of white baby cerinth snails crawling around. They are about 2mm long. They just might survive at that size.
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Mike Savage
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Posted: July 04 2007 at 1:31pm |
 Mark Peterson wrote:
Margarita/Nerite reproduce by broadcasting the eggs and sperm. That means they spew their gametes into the water. Small fish and coral love eating the eggs and sperm.
Astrea lay small egg cases on the glass and rock. Each egg case contains 15-30 eggs. They hatch and crawl away, only to be eaten by hermits and shrimp.
Cerith lay an egg string on glass and rock as pictured above. |
Nerites are different from Margarita snails. Nerites are a true tropical snail (Margaritas are from the Pacific coast of North America according to Ronald L. Shimek's Marine Invertebrates) and Nerites lay egg capsules.
Mike
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