Unlabelled Crayfish Spider cray, spider cray......

September 17, 2020
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Crayfish Spider cray, spider cray......

Spider cray, spider cray......

Posted: 16 Sep 2020 06:46 PM PDT

My boy Jalapeño

Posted: 16 Sep 2020 11:19 AM PDT

found him! (more in comments)

Posted: 16 Sep 2020 12:56 PM PDT

Having a snack of old exoskelly

Posted: 16 Sep 2020 06:42 PM PDT

Come At Me Breaux Vintage Crayfish Boiling

Posted: 16 Sep 2020 09:54 PM PDT

Help

Posted: 16 Sep 2020 09:24 PM PDT

I have a Mexican lobster in a ten gallon with a healthy bunch of fl neons and a mystery snail, driftwood and attached plant.. It's been a happy tank for five months, since putting in lobster.. Larry. (I know, I know...) so I moved. They've been in new home for about a month. I've been terrible busy. I'm over due for water change, im worried cause I went from well to city water. and larry started acking really weird now he looks to be dying. I checked the ph and it's stupid low. Idk if it's the new infestation of assassin snails that came over from my other tank or what happened.. I was never diligent on water changes before, and that's never got that crazy before. . So I put in one dose quickly of ph up and I'm wondering if it's still way to low, what's a fast way to bring it back up ? And is that ok to do it fast?

submitted by /u/tanksnspankz
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Colorful Aquatic Crayfish Species in Watercolor painting

Posted: 16 Sep 2020 07:54 PM PDT

Is my crayfish sick and how do I help him?

Posted: 16 Sep 2020 04:15 PM PDT

I've had an electric blue crayfish in my 30 gallon tank for about a year now and I noticed today he looks like he is having trouble moving around and hadn't been coming out of his cave for a while. He also is not eating anything. Please help! Pictures: https://imgur.com/a/P8V7NIb/https://i.imgur.com/xW7rKpH.jpg

submitted by /u/falocan54
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Crayfish Care Guide: Everything you need to know to get started!

Posted: 16 Sep 2020 12:09 PM PDT

Hello, r/Crayfish! I have frequented this community a lot recently and noticed that it can be very hard to find information on this hobby. I do my best to answer questions when I find someone who needs help, but it would probably help to have it all in one place. I will divide this post into a few sections listed here.

  • Acquiring your pet
  • Tank and water parameters
  • Tankmates
  • Feeding
  • Molting
  • (if I forget anything I will add it in later)

Acquiring your pet

This is a difficult one because Crays are not very common as pets and are therefore not sold in many pet stores except for specialty shops. The cheapest option is to catch them wild. Crayfish are native to many parts of North America, Australia, and New Zealand, and can be relatively easy. Just a plastic bowl is sufficient to catch one.

If there is no way to catch wild you can always order online or check your local supermarket. These creatures are often sold as food and you can buy them easily live. Shopping online is also a safe and easy option. I linked a reputable website to help if you are leaning that way.

CRAYFISH ARE INVASIVE SPECIES!

Make sure you try to keep local species only.

Tank and water parameters

Crayfish are hardy and not very picky about their water but there are certain things they need. I will divide this section into a few parts to make this easier to write.

Tank size

Crayfish under 3 inches/ 8cm can be placed in a 2-3 gallon tank but keep in mind that crayfish that small are usually young, and young crayfish molt and grow very often. Crays from 3-6 inches/ 8-15cm can be kept in a 5 gallon and by this point, they should start to level out and moly less often. Anything above 6 inches/ 8 cm should be kept in a 10-15 gallon. Here is a link to a few tank sizes on amazon. 3 gallon 5 gallon 10 gallon The water level should be around 75-100% full to allow both the filter and bacteria to work correctly.

What you need in a tank

You really shouldn't put your new friend in just an empty box with some tap water, it will die. In a tank, you need to have (at the bare minimum) a filter, bubbler, 1-2 hides, and gravel/ sand/other substrates. A filter is important because it keeps the tank mostly clean and keeps the water circulating. Here is a filter I recommend. I always keep my filter at the highest or second-highest setting to make sure the tank is well circulated.

The next thing you need is a bubbler. This helps to aerate the water and, while not entirely necessary, it is better to have one. A cray can breathe air as long as they can get out of the water and their gills are still wet. If they have no way to get out of the water that will have to have a bubbler. Here is one I recommend.

The substrate you choose is also important. Crays love to dig and re-decorate their tanks so having a substrate they can move is vital. I always use natural-colored gravel with some larger, smooth stones mixed in. You want to have at least an inch of this but more is always better to have. I would not recommend more than 3-4 inches of gravel. The gravel, in addition to the filter, is where most of the bacteria in the tank live so it is also important to have them for that reason. I will get into why that is the case in just a minute. Hides are one of the most important things to have in a tank. I recommend keeping at least one per crayfish and making sure they can go completely into the hide. Here is a good example. Water parameters I mentioned before, they are not super picky but there are some non-negotiable things.

  1. Ph should be around 7.
  2. Water temperature should not go below 65 or above 81.
  3. Ammonia, Nitrite, Nitrate should all be 0.
  4. This is why you properly cycle a tank. Video on how to do that here.

To check all of these you can get either liquid or strip testing kits.

Tankmates

Crayfish are opportunistic hunters and cannibals. They should not be kept with anything, plant or animal, who you love. They destroy everything you love.

But seriously, do not put anything that keeps to the bottom of the tank like plecos or corys. You might be able to keep them with some tetras but I'm not entirely sure.

Feeding

Crayfish are not picky eaters and will eat almost anything you put in the tank. Make sure you give them a combination of meat and veggies. Overcooked scrambled eggs make a great treat.

Last but not least,

Molting

Crayfish are invertebrates and do not have a skeleton on the inside of their bodies. Instead, they have an exoskeleton that they shed over time. In the first year or two of their lives, they shed around once a month, sometimes more sometimes less. As time goes on it spaces out more.

Before they molt they may refuse food for a few days, hide more, and scratch more with their legs. You might also notice that where the tail connects to the main body looks 'bloated' or fat.

When the molt if may look like they are dead or having a seizure. Do not disturb them at this time, they can get through it themselves.

After they molt, they will be soft and skittish and should not be fed. Do not remove their molt either, they eat it to help replenish the calcium they lost and re-harden their shell. You should start feeding again after most or all of the molt is gone.

​

If there is anything I should add, let me know!

submitted by /u/JadeFlowerGMG
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