Invertebrates dying

[alp5747]

Recently I had a couple inverts that died and some tuxedo urchin that are not doing great.

My question is what could cause inverts to die? Or do poorly?

I suspected copper so I just added some cuprisorb.
All parameters seem to be stable and in check.

 

[chip shop]

Is there enough algae and waste in the tank to feed on

 

[alp5747]

Is there enough algae and waste in the tank to feed on

There is definitely enough food. Their is also a lot of coralline algae in the tank for the tuxedo urchin

 

[Mr. Mojo Rising]

poor acclimation, poor water quality, starvation are the usual causes.

Its hard to just throw guesses out... pictures and more details will really help. How long you had them before you died? Any fishes and coral, how are they? Water parameters? etc...

 

[alp5747]

poor acclimation, poor water quality, starvation are the usual causes.

It’s hard to just throw guesses out... pictures and more details will really help. How long you had them before you died? Any fishes and coral, how are they? Water parameters? etc...

The tank is full of coral sps lps and acros. Parameters are stable in a normal range

Phosphate 0.06 ppm
Nitrate 4 ppm
Calcium 420ppm
Magnesium 1370 ppm
Alkalinity 8,5 dkh

There is plenty of food, detritus coraline and algae

 

[DaJMasta]

What's your salinity?

Have you calibrated your salinity measurment tool recently?

 

[dedragon]

is it all invertebrates including corals?

 

[alp5747]

What's your salinity?

Have you calibrated your salinity measurment tool recently?

Salinity is 1.025 specific gravity using calibrated refractometer

 

[alp5747]

is it all invertebrates including corals?

Mainly Tuxedo urchins and snails I see visible doing poorly

 

[College_Reefer]

Stray voltage perhaps? Just throwing that out there because if what you're describing is true, if it isn't copper, I'm not really sure what else could cause it

 

[dedragon]

Stray voltage perhaps? Just throwing that out there because if what you're describing is true, if it isn't copper, I'm not really sure what else could cause it

I was getting to that but usually corals like sps and lps will die first. Soft corals can take it better

 

[alp5747]

Stray voltage perhaps? Just throwing that out there because if what you're describing is true, if it isn't copper, I'm not really sure what else could cause it

Could be copper or heavy metals but I only added the cubrisorb today so I will see if the invertebrates improve

 

[dedragon]

Could be copper or heavy metals but I only added the cubrisorb today so I will see if the invertebrates improve

make sure to check all magnets in the tank as well as powerhead, pumps, and most importantly the heater.

 

[College_Reefer]

make sure to check all magnets in the tank as well as powerhead, pumps, and most importantly the heater.

When I had it in mine (and I have zero idea what from since it was all new equipment) my hand would tingle when I put it in the tank. I bought a titanium grounding probe off amazon for $15 and it solved it instantly

 

[jkobel]

Any update from OP? All of my inverts have died and when I add new ones they die within 2 hours without fail. That has happened 6 times over the last 9 months.

snails (all types)
hermits
emeralds
shrimp

i was convinced that my acclimation process was the culprit but after this weekend im not sure. bought a drip acclimation set up and acclimated peppermint shrimp over 2.5 hours and when they went in they looked terrible right away and 2 hours late were all dead.

I have thought about stray voltage - how do i test for it?

I have a tiger shark glass cleaner (strong magnet) that i leave in the tank, doest that make a difference?

params are all stable, tank is 4 years old. i dose alk, ca and trace with red sea.

sal - 1.026
ph - 8.12
alk - 9.02
ca - 391
mg - 1361
nitrate - 4.6
phosphate - .35

does this make any sense to anyone?