Deaths

[gabelex14]

I've had three emerald crabs and a pincushion urchin die in the last few days. Weirdly enough my snails are completely fine. I'm going to send an ICP test off when I get one but I have no idea what's going on

Parameters
1.025 sg
Nitrate 5ppm
Phosphate .03
Temp 77 F
Alk 7.8
Calc 430
Mag 1360

 

[EricR]

How long has the tank been running?
How long have the OK snails been in the tank?
How long were the crabs/urchin that died in the tank?
*just some background for those that want to offer thoughts

 

[gabelex14]

How long has the tank been running?
How long have the OK snails been in the tank?
How long were the crabs/urchin that died in the tank?
*just some background for those that want to offer thoughts

It's been up for 6 months, the snails and the urchin have been in for 3 months and the crabs were added a week ago

 

[kitti-fish]

Emerald crabs are notoriously easy to kill and pincushions can starve easily. Do you adequate enough food?

 

[Gone Reefin’]

this could be coincidence, or there could be a trace deficiency needed for crab molting. Speaking of molting, just want to confirm that you have counted the missing crabs? What I mean is molts can look exactly like dead crabs unless you check the corpses for missing insides..