Finding dead Conch snails

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Hi all,

I’ve found 2 dead conch snails in 2 days strangly in the same spot, appears that the snail has been ripped from the shell and a green / clear like snot is left behind - has anyone experienced this before ? I haven’t seen anything like a Eunice that could come out at night as the remains seem to be under a rock away from the shell

Picture below shows shell in front of the pineapple coral and the green patch behind the pineapple is what’s found both times when removing the green leftovers with a turkey Baster it’s just like snot ?

HK_Fuey

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Reply #1

Hard to see, but I've found they end up getting pulled out of their shells when they die, by the cuc (just doing their job).  If something is actively hunting them, then you will have to keep a close eye.  Try looking at night, use a red filter over a torch (a red sweet wrapper works), as most critters and fish can't see the red light very well. Could be a worm, mantis shrimp, or polyclad flatworm.

Matt_toynton

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Reply #2

Cheers HK seen nothing but a few large bristle worms at night with a red light Mag and Cal bit high though at 500 and 1500 .. is this mag too high for the snails do you think ?

HK_Fuey

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Reply #3

Yes, high Mg is believed to affect inverts.  Nothing proven, and some think it is to do with contaminants in Mg boosters, such as copper.  Water changes to bring down Mg.  Maybe need to do an ICP test if it's still an issue to check for various other contaminants.

fr499y

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Reply #4

I ran mag up to 1800+ at one point to help kill bryopsis. Inverts tend to slow down but shouldn't cause deaths. They go back to there speedy/active selves as soon as levels start to drop again.

HK_Fuey

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Reply #5

I use Mag flake for Mg, so not really any contaminants.  It's the stuff like Kent Tech-M that people we talking about - you never really know what else is in there.

fr499y

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Reply #6

I use Mag flake for Mg, so not really any contaminants.  It's the stuff like Kent Tech-M that people we talking about - you never really know what else is in there.

Tech-M ( or Continuum Mag as its now called ) is perfectly safe as thats what i've used.

Matt_toynton

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Reply #7

Thanks both - I’m not actually dosing mg I’m using RSCP at 35ppt so I’m not sure why values are as high as they are I think at 35ppt it should be around 1350. I don’t seem to get much uptake of Alk mag or calc. No SPS just a good mix of soft and LPS. Obviously unless I switch to the blue salt water changes won’t lower my levels - currently doing 20% water change once per week

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Reply #8

Might be worth stirring the bucket of salt and making up little to see what the levels are. People have found salt to separate a little on occasion.

Matt_toynton

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Reply #9

Thanks again, I’m literally getting to the bottom of the bucket now so it stands quite likely there could be some separation there, I’ll check on the next water change and confirm.

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