Friend or foe?

[etork]

Found multiple of these snails in our sump. They move decently fast. We have trochus and astrea in the DT.

The one image is zoomed in, the other is to scale against my finger.

 

[SHNICI]

it look like collonista snail. Only the very darker spots I cant recognize.
#reefsqaud ?

 

[cshouston]

Second collonista snail, but they can reproduce like crazy and become a nuisance so I’d toss any you find, personally.

 

[SHNICI]

Second collonista snail, but they can reproduce like crazy and become a nuisance so I’d toss any you find, personally.

yep, they reproduce like crazy in my system at the moment, but that way they are taking control of some algae's grow in my tank. And don't look too bad at all, I think they are good CUC

 

[etork]

Got a better picture. Same size as the other one (there are at least a dozen in the sump, can't see any in DT)

 

[SHNICI]

Got a better picture. Same size as the other one (there are at least a dozen in the sump, can't see any in DT)

that don't look like the collonista snail, the shape, the pattern and the shell is a bit different.
Google Collonista Snail, and try to match it to any

 

[etork]

that don't look like the collonista snail, the shape, the pattern and the shell is a bit different.
Google Collonista Snail, and try to match it to any

It looks very trochus like, not like the pictures of collonista I saw. But of course I always think the worst.

 

[SHNICI]

the trochus is fine, but your isn't that one. the pattern and the shape is a bit different mainly the pattern. the trochus snail don't have this dark spots like your one (I can't find any like your).
Probably the members of the #reefsqaud may help

 

[SMSREEF]

Baby trochus. Mine just had a bunch of babies too.

 

[SHNICI]

Baby trochus. Mine just had a bunch of babies too.

but do they have this dark spots like his one ? My baby trochus don't have them (of course exist many different SP trochus, but can't match this one with any

 

[SMSREEF]

but do they have this dark spots like his one ? My baby trochus don't have them (of course exist many different SP trochus, but can't match this one with any

The first pic is very dark. 2nd pic looks exactly like mine.

 

[etork]

The first pic is very dark. 2nd pic looks exactly like mine.

First pic was rushed, and with overhead lighting that made it look dark. They look exactly like banded trochus.

 

[SHNICI]

The first pic is very dark. 2nd pic looks exactly like mine.

good mate, I just wasn't sure, because I know another one (don't member the name of it) which was similar to the collonista but have a bit different pattern on the shell, and it was a pest

 

[SMSREEF]

It’s crazy how many babies I have now. Don’t get me wrong, it’s cool, but I’m so worried these guys will starve.

maybe they will all grow just fine and we can trade for them some coral