Possible tank issue

A little history

About 2 months back I had a issue with my dkh, where it drop to about 4. As a result of that my LTA was bleached along with a few of my other coral, I lost a nice patch of Pom Pom and all my snails, its back up to 10 now. About 2 week later I got some more snail( Margarita) and they all died again.

Present day

I got 12 snails (margarita) two day ago and about 5 of them are turn over on their back, not dead, just flipped over and not even trying to flip back. I know that how it starts. Any idea on what it could be?

1. There is no copper in the water.
2. I don’t have a probe. (I don’t think this is the issue because my LTA opens up with no problem but i can be wrong)
3. I have no crab or any other visitor that could be taking them out
4. am not using a heater

 

what are the rest of the parameters. theres a form...here ya go.....that ull have to fill out for people to get you the best help possible.

Brief description of the problem.
A picture(s) will also help.
PARAMETERS (important)
Temperature:
PH:
Ammonia:
Nitrite:
Nitrate:
Salinity:
dKH/KH/Alkalinity:
Magnesium:
Calcium:
Phosphate:
Test kits you own:
Liquid or Strips:
Brand Name:
Are they Expired?:


Tank size?
Estimated total system?

Reef, fish only or, freshwater?

Current inhabitants? What and how many?
Clean up crew?

How long has your tank been set-up?

Substrate.
Type?
Depth?

Live rock?
How much?
Did you recently add some?

Filtration.
Type?
Protein skimmer?
Do you wet or dry skim?
Maintenance schedule for filtration?
Drilled tank/hang on back overflow?
Sump/refugium. What's in it and how much?
Macro? What kind?

Lighting.
Lighting type?
Age of bulbs?

Feeding
What?
How much?
How often?

Water change schedule.
How much?
How often?
What salt brand?
Water source?

Additives/supplements used?

Do you have a ground probe?
What kind of flow does your tank have?

Any additional info you would like to share.... Including anything different that you have done/not done.

Let's get to the bottom of this. Any of the above info that is questionable to you is pertinent to keeping a happy/healthy tank/wallet.

 

why are you not using a heater? Heaters are very important to keep the temp consistent. Major temp swings could easily kill snails. get back to us with the tank Q&A.....just answer what you can.

 

with the Mh my tank temp is a stable 77-78

 

What about when the MH is off though?

 

all my perm are in order,

this is the infor on my tank

29gal, 150 MH, 2 t5 blue,fluval 205,1" bed,35pd DIY/10gal, sump 2 1/2 bed
Fish: 2 4 line Damsel, 2 clowns , 1 Lawnmower, 1 arrow crab
Coral: Toadstool, 8 differnet type of mushroom, 4 differnet types of Button, xenia
Invertebrates: LTA
Clam

water change weekly 10%

live brine wkly

 

right... what is your temp right before the lights turn on? all night while the lights are off, the tank is cooling.

 

perm = parameters?

Sorry dude, that doesn't cut it. We need actual numbers.

 

it drops to 75 to 76.

 

Low Dkh will not typically kill inverts. There must be another cause. If you could list your current water Parameters we may have a beter understadning of what is going on

J