biancaalexis wrote:1. What kind of substrate is used in your tank and how deep is it?
I use only PlaySand and my substrate is 7in deep
GB: Just a reminder - it should be at least three times the depth of your largest crab. Also - this should be mixed with either dechlorinated fw or dechlorinated msw to make it sandcastle consistency 
2. Do you have gauges in the tank to measure temperature and humidity? If so, where are they located and what temperature and humidity do they usually read?
I go have a digital humidity/thermometer gauge. It is located on the right side of my tote on the substrate. It reads 77 degrees with 80% humidity
GB: I personally prefer heat to be around 80.
3. Is a heat source used in the tank? If so, what?
Yes, I have two aquarium heaters. One is located on the back of my tank and one is located on the left side of my tank
GB: When you say aquarium heaters what exactly do you mean?
4. What types of water are available (fresh or salt) and how is the water treated (what brands of dechlorinator or salt mix and what ratio is used to mix it)?
I have both fresh and salt water pools both with bubblers. I use Aquasafe dechlorinator (2 drops per cup) and instant ocean ( I just use a pinch)
GB: I'm sorry, this method of measurement won't work. You need to measure your instant ocean correctly. 1/2 cup of instant ocean per gallon of dechlorinated fw.
5. What kinds of food do you feed and how often is it replaced?
I feed a mixture of food packs from Hermie's Kitchen as well as Valley Splendor Mealworm Snack wild bird food (Ingredients: Dried Mealworms, Sunflower Hearts, Gelatin)
GB: Are you providing a calcium source such as cuttlebone all of the time? I recommend cuttlebone, eggshells, coral, crushed oyster shell, shrimp exoskeleton, lobster exoskeleton...etc.
Also, make sure you do food pyramid, give a variety...etc:
Safe food list: viewtopic.php?f=25&t=92557
Unsafe food list: viewtopic.php?f=25&t=92556
Food pyramid: viewtopic.php?f=25&t=92554
6. How long have you had the crab and what species is it, if known?
I've had this specific crab for almost a year it is a purple pincher
7. Has your crab molted, and how long ago did it happen?
He molted recently, just came up from a molt maybe three days ago and was just sitting on the shell shop
8 and 9. What type of housing are the crabs kept in, what size is it and what kind of lid is on the housing?
I have a tote that is estimated (based on dimensions) to be 20 gallons. I just used the lid that the tote came with, and drilled some holes in the top. I'm not sure if this is tight? I have 2 small crabs and 3 large crabs. I estimated 4 gallons per each large crab and 1 gallon for each small crab which comes out to just under 20 gallons
GB: I personally think you are overcrowded. Large crabs need more room - perhaps 10 gallons each. Small maybe 5 gallons each. That's my opinion.
10. How many extra shells are usually kept in the tank, if any?
At least 20+ I lost count to be honest
11. Have there been any fumes or chemicals near the crabitat recently?
Nope
12. How often do you clean the tank and how?
I don't really "clean" the tank, as much as I reorganize. I did have to dig up one molter (not the crab in question) as well as remove my crabs that were up from my tote and removed all the sand because there was a bug infestation that resulted in the death of two of my crabs. That was almost a month ago, and I haven't had any issues since.
13. Are sponges used in the water dish? If so, how are they cleaned?
No sponges are used. I have aquarium rocks in both my pools.
14. Has anything new been added to your crabitat recently?
I adopted two large crabs about a month ago.
15. Is there any other information you would like to share that might be helpful (anything that is regularly part of your crab care, playtime, bathing, etc.)?
I try to limit opening the tote too much. I open it maybe 2-3x a week just to change food and check water levels and just to check up on them in general. It was today when I opened the tank that I found my crab naked. I believe he was attempting to change shells and I scared him. I attempted to leave him alone and allow him to do his business, but I noticed by larger crabs were surrounding him, so I thought it best to put him in ISO where I attempted to reshell, but he came out of the shell and entered a new shell. I added healing powder from Hermie's Kitchen and set him in the the food dish he was eating last I checked. He is still pink form his molt.
Edit: put this inside quote marks so it was in the post
GB: I would recommend opening the tote more often so they have sufficient air exchange. I do it daily for my isopods. My isopods are in a 45 gallon tote. If he was pink from his molt, then it is possible that was was dug up by another crab, or run into by another crab and his shell was stolen. They usually stay under until they are completely hard and have some color to them. I'm really sorry for your loss! ((HUGS)) 
