Electric Blue Crayfish turning purple

[Lighterknot]

I got this guy from a big box store 4 days ago and he seemed fine. I put him in my “algae tank” temporarily which has cherry shrimp and guppy fry. Yesterday I noticed he hadn’t come out of his cave for a couple days so I moved it with the net and under his shell it looks like he’s turning purple. Any idea what could cause this? All of the cherry shrimp and guppies are fine.

He doesn’t seem to be eating and I’m worried he is dying. I did about a 50% water change just now just in case that was the issue but other than my nitrates being around 50 nothing else was off.

 

[Lighterknot]

Approx 10 hours after the water change he looked much better and I couldn’t see any hint of the purple/red undertones. 4 hours after that he was dead

 

[celebrist]

Bummer, sorry

 

[Deadliestviper7]

Sorry for your loss,kinda weird as well?

 

[Noa123]

The nitrates were high, that’s why it died. I have an electric blue in a 10g with two goldfish, a rainbow shark, and tons of ramshorn for it to eat. I keep the nitrates low to about 15, but I’d like to think your cray would’ve tried to escape first or do something to let you know something was wrong. When I had high ammonia in my tank due to the goldfish, I came home from work to see my electric blue waiting for me in my hallway. Sadly I don’t know if my cray is male or female and the time I picked it up to put it in the tank, I grabbed the claws and it still managed to bite me so I’m not too keen on knowing the gender anymore.