Unlabelled Crayfish Creeper snacking on a molted shrimp shell.

April 22, 2020
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Crayfish Creeper snacking on a molted shrimp shell.

Creeper snacking on a molted shrimp shell.

Posted: 21 Apr 2020 07:38 AM PDT

Probably over asked but: I'm wanting to take one of the recently hatched blue crayfish babies from my brothers tank, but I've never owned a crayfish before and I want to eat up all the info I can from experienced owners

Posted: 21 Apr 2020 09:29 PM PDT

Of course I'm gonna be waiting until they leave the mother, they're literally just hatched yesterday or today. It'll be a month before I can get a new tank and all the needed stuff. I'm doing a bit of reading here and there to learn what I can. I own a few tanks with just fish and snails right now, but I've never had a crayfish. I was hoping I could get some opinions and advice straight from people who own crayfish and are experiences in what they need/like.

My biggest questions are about substrate and filters. I have an extra unused sponge filter, but I also don't mind getting a hanging filter that comes with aquarium kits. I read that they like to burrow in sand, but sand can clog up some hanging filters. I also read that they can sometimes eat sponge filters. Some people say it's not healthy, some say it's perfectly fine. Basically all I know at this point for sure is that I need hiding places and that they will fuck up plants like the plant called them and their whole family a slur but beyond that, I am a total novice.

Thank you in advance!!

submitted by /u/amthsts
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PH mystery

Posted: 21 Apr 2020 02:19 PM PDT

I caught wild crayfish about 2 weeks ago, and they seemed to transition quite well. They were eating, behaving normally. The scape they had didn't have enough hideouts for them, so i redid their tank, adding some wood that was from another cycled aquarium. I used the same subrate and rocks so everything already had beneficial bacteria, i even reused some of the water. The water was whitish cloudy which i thought nothing of attributing it as new tank syndrome. It got pretty clear by the next day(yesterday). Today it got very cloudy(again whitish) and i noticed the crayfish seemingly "go in and out of consciousness". One minute they would be on their back and unresponsive but the next after i went to go get a net they would be moving. They were also much more sluggish. I looked at the plants and they were coated in a white film which they had not been before. I immediately took them out into a bucket of treated water. I tested my water in the tank Ammoni; 0-0.25 PH: 6.3 Obviously that pH is incredibly low and i believe it is what caused the crayfish to die(1 is alive the other is not responsive) Would the pH also have caused the sudden cloudy ness of water and the white film on my plants? What could have caused the white film?

submitted by /u/SatanAtHighVelocity
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can an ecosphere support much life

Posted: 21 Apr 2020 05:05 PM PDT

So I started an ecosphere from a local creek in a large plastic water bottle. I put a basic substrate with some algae covered rocks and a big hunk of moss. I added 2 small baby crayfish probably about the size of the end of a thumb. I also added 3-5 salamander larvae. During the day I put the bottle in indirect sunlight and the plants (moss, algae, etc.) seem to bubble with oxygen. The salamander and crawfish love this. I'm about three days in and everything is still surviving well it seems. Is there anything I need to do to ensure the survival? Ps: there are also mosquito larvae I added that I thought the salamanders might eat and also two of what I believe are r crane fly larvae. Is this too much? If photos are needed I can provide. I know I'll have to move the organisms as they begin to grow if they survive in this environment, but at the moment wondering if this will work?

submitted by /u/Lilbudder
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General Advice

Posted: 21 Apr 2020 06:42 AM PDT

For the last few days my crayfish has been acting sluggish. She is normally very active and come to you at the glass for a fight. But for the last few days she has been slowly moving and not really reacting to movements and light they way she normally would.

I've had her for over a year now and she was approx. 6 months old when I got her. So she should be about 1 and a half now. She has molted several times and all have been fine. She would move sand around and stay in a spot in the tank for a few days and then we would find her molt.

This is what she started doing about 5 days ago but things feel different now. It's been much longer than usual and no sign of molting. It's almost like she's feeling sick. I have tested the water and it's at safe levels. I will do tank changes more frequently (normally once a week) to keep things extra fresh but I'm just worried.

I wonder if this is because of her larger size now. Will the molting process and preparing herself take longer the larger she becomes? Or is there anything anyone can suggest? Another normal trait is that she would be less concerned about food before molting in the past and she currently isn't eating much. I put her normal portion of garden peas in a few days ago and most were still there the next day. Yesterday I only put 2 peas in and she did eat those.

If anyone knows of something besides a pending molt that could cause a crayfish to become slugish/sad/sick then I'd appreciate the help.

Thanks for reading

submitted by /u/iMike_Turner
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Geronimo - Before and after (give or take 6-7 months) Red guy's still alive

Posted: 21 Apr 2020 10:53 AM PDT

Crayfish Eggs

Posted: 21 Apr 2020 02:05 AM PDT

Hello, how long will crayfish hold its infertile eggs until it drops/eats it ? And how long it takes for cray eggs to hatch and can temperature affect hatch speed ?

submitted by /u/Batariell
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