Crabs Dying or Getting Killed

erenninger

Member
Hello,
Water Quality
PH 8.2
I had one of those spider crabs dye and the blue ones die over night...
Ammonia 0
Nitrate 0
Nitrite 0
Gravity (spiked up very high over night) did a water change and its back down to 1.022
could the high Gravity kill off my crabs?

you can see the little guy gone in the middle...shame ive had him for quite some time....
do you think it was the gravity spike? I also just got a blenny
 
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