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-   -   Disease that kills only snails? (http://www.tropicalfishkeeping.com/invertebrates/disease-kills-only-snails-157441/)

MonteCarlo 04-19-2013 04:03 PM

Disease that kills only snails?
 
Had a weird series of deaths in my tank. Its a ten gallon heavily planted NPT, picture of it in my aquariums tab. Its been running for over four months, so its matured and the water is fine. Ive had a mystery snail for about five months, i bought it when it was already pretty big but im sure it wasnt that old. I know that my 76-78 degree water speeds up its life span, but when the snail died two weeks ago, I was pretty sure it was premature. Whats even weirder is that all of my little ramshorn snails (i had about 12 straggles that were young) ALL died within the same day or two.

While this happened, my 4 male guppies were fine. I was raising three baby white cloud minnows and now theyre bigger and fine too. The biggest proof that it wasnt a water quality problem, I have two red cherry shrimp that were fine too, and actually now I have about 8 baby RCS that popped up a week after the deaths (probably cuz my snail couldnt eat the eggs anymore).

What gives?

djembekah 04-19-2013 06:56 PM

Well what were your water parameters? What kind of food do you feed? Were there any changes to the tank around when the snails died?

MonteCarlo 04-19-2013 10:01 PM

Quote:

Originally Posted by djembekah (Post 1807737)
Well what were your water parameters? What kind of food do you feed? Were there any changes to the tank around when the snails died?

Couldn't tell you the params other than they assuredly were fine, i feed the fish omega one flakes and frozen brine shrimp, and there was not any changes.

djembekah 04-19-2013 10:08 PM

what about your water hardness?

MonteCarlo 04-19-2013 10:19 PM

Quote:

Originally Posted by djembekah (Post 1809313)
what about your water hardness?

slightly hard, i believe it was around 10 dgh. pH was 7.5. Its good enough for snails and live bearers. Regardless, could any of these things kill all the snails within one or two days, but leave the guppies, minnow fry, and RCS alive and well? Seems pretty strange to me

djembekah 04-20-2013 09:56 AM

Kinda hard to say without hearing the ammonia nitrite and nitrate numbers. inverts are waaaay more sensitive than fish, and a spike that stresses fish could kill snails and shrimp. so while your numbers mightve been "Fine" maybe they weren't for the snails.
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MonteCarlo 04-20-2013 02:12 PM

Quote:

Originally Posted by djembekah (Post 1812705)
Kinda hard to say without hearing the ammonia nitrite and nitrate numbers. inverts are waaaay more sensitive than fish, and a spike that stresses fish could kill snails and shrimp. so while your numbers mightve been "Fine" maybe they weren't for the snails.
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True, but from my experience, shrimp are much more sensitive than snails. Ive seen snails live in some pretty bad water since they can breath in air, never shrimp. The fact that my two cherry shrimp not only survived but also reproduced successfully with all of the babies alive right now tells me the water is okay.

Even if it wasnt, how could water be THAT bad to where it would kill over a dozen snails within the same day? Since that day ive only done one small water change, so that atrocious of water quality surely would effect some of the other sensitive stuff i got in there two weeks after that.

Id just like to know if there really is some other option to how this could have happened...

djembekah 04-20-2013 05:45 PM

Honestly can't tell you any other theory. I hardly hear about snail disease. usually problems are related to water quality but since yours is "fine" its a mystery to me.

i only put fine in quotations because you won't give numbers.
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thekoimaiden 04-21-2013 12:50 AM

Cherries are pretty hardy shrimps. Usually takes a lot to kill them. I've heard of them surviving in unheated buckets. Some people keep them outside year-round. If you had a more sensitive species of shrimp like crystal reds or orange-eye blue tigers then we could say without a doubt that it was a snail disease. Until you can give us some quantitative data, we can only speculate. When we look at fish disease, the first thing we rule out is water-quality related deaths.

yyankeeyankeefan 04-21-2013 01:03 AM

honestly, mystery snails are apple snails. they get farily large and a 10 gallon is not enough space for a dozen of them. they most likely starved to death. though none of what you have described says "perfect" water. having ANY amount of build up in your tank will cut down the life span of any animal into your tank. be aware that rcs are so hardy. they live in buckets set up outside only replenished by rainwater. hard to kill, and great starter shrimp. also they carry their eggs like a lobster does under the tail. the fact that they didn't have eggs before might be an inclination that something was wrong with your tank and that might be what killed the snails also. apple snails need to be fed the same as other types of inverts. they need lots of calcium and they need fresh veggies in a tank that is only 4 months old. with the number of them, there is no way that they could get all they needed in a 10 gallon tank


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