Tiny pest snails?

schiller

New Member
Hello everyone. I keep running into problem after problem with a new setup, and I was hoping that I could get some advice. I have had a 55gal column running for a couple months now, and decided to add some snails to my cleanup crew. I added 10 Astraea turbo, 10 cerith, 10 nassarius, 4 spiny star astraea, and 4 bumble bee. 24 hours later, my glass had trails of tiny white snails crawling up the glass. Fearing a pest, I promptly removed them (maybe around 30?) and began research for identification. A few days later now there are maybe 50? I am in a panic, and I can't seem to find any useful ID. I would post a picture, but it would be useless because they are so tiny. The picture just looks like a white dot if you can even see that. They form a line coming out of the sand bed (almost like a trail of ants, though they are definitely snails).
They are bright white, no evidence of any other coloration/stripe/etc. They are about the size of a grain of sand. Maybe 1/8 of a grain of rice, if even. It is a snail with a hard shell coming to a point (not a round circle). It is so small that I can't use the identifying guides that mention the direction of shell striations or anything like that. I find the new trails in the morning, but I have not seen a "tank full" of nocturnal snails when I check on it during the night, and they stay put during the day (meaning they don't rush back into hiding when I turn the lights on). I am scared that they might be baby pyramidellid snails, but they are on the glass. I have not noticed anything on the snails or fish, and I don't have any clams. This is what worried me because my goal would be for coral and a clam.
I have eliminated the possibility of a tube worm, filter feeder, spirobid worm, collonista snail. They are definitely not any kind of pod or other "bug". They aren't eggs, there is no darker center spot.
I try to introduce new things without adding any of the bag water from the stores, though I know I do get a minimal amount of that. I am assuming that it came with my live rock and were chased out by the new arrivals? I am sure I would have noticed hundreds of sandy specks when adding the snails, and I assume they couldn't have laid and hatched eggs - It hasn't been but a 3-4 days since their arrival and I have noticed no "egg patterns" on the glass.
Am I safe from them being "bad snails" because they are hanging on to the glass?? Why the sudden rush of these guys? I added half the amount of snails as was recommended from most of the sites I read, but was this actually too many and it is flushing these guys out? Should I remove some of these that I bought? Pleeaaasseeee tell me I am not infested with a predatory snail and have to take down the tank.... I have been removing them manually as I see them.
 

flower

Well-Known Member
Hi,
Welcome to the site.
You are stressing over nothing. If they were little red snails covering everything it would be flatworms. Those are a pest and breed like crazy.
The live rock is loaded with tiny creatures like what you discribe. They come out and clean the tank and return to the rock to hide and breed. As long as the tank can support their life they will continue, and when it can't, they die off. Your tank is loaded with all kinds of critters...some could be pests and some are not. You are not discribing a pest creature that I know of.
Most of us purchase fish, shrimp or crabs to help us create a kind of food chain, so something eats what we don't really want. Some folks like a wrasse so it eats the bristle worms. A lawnmower blenny will eat algae off the rocks and so forth, a mandarin will eat copepods.
I found it easier to learn what the pests are and watch for those...everything else is considered a cool new critter discovered in the tank.
 

geoj

Active Member
Baby cerith and rissoid snails look very much like pyramidellid snails, because you don't have clams you will not likely have pyramidellid snails.
 
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