Hi all..Ever since my 6yo grand daughter came home with crabs(love saying that) I have been a Hermit crab fanatic.The 2 crabs she brought home were in a small plastic cage with a bottlecap of water and a sprinkle of aquarium gravel. I realized they would be deceased crabs quite soon in this set-up and began my quest to care for them. A $150 later,I have a 20 gallon set-up per instructions from this site and others. My first question is this..The first weeks I had this tank up they we're mildly active(I hear PP's are pretty calm) and eating good,enjoying a variety of foods. The past 2 weeks they have no interest in any kind of food and there activity level seems to have dropped. I do see them in the fresh and salt water dishes..If I take them out and hold them they will respond and move around on my hand quite eagerly..anything I should worry about,them not eating? I learn more and more everyday,and lately I dream of Hermit crabs,so I have the fever,lol..Thanks much! :twirl: My Tank Information.. 1. Tank size.. 20 G Glass 2. Type of lid or cover? Plexiglass 3. Type of substrate used and depth? Calci-sand and Coconut fiber mix..2 1/2 inches deep. 4. Temperature of the ‘tat? 77 5. Temperature of the substrate? 75-78 6. Humidity in the ‘tat? 75-85 % 7. Type and location of gauges? Fluker,digital,center of tank at substrate level. 8. Source of heat (heating pad/lamp) and/or humidity (tropic-air/misting)? UTH,Lights,home made humidifier/fogger 9. Types of food fed (commercial or homemade)? No commercial,only fresh fruits/veggies/meats 10. How often do you switch out food? Daily 11. Types of water available (fresh and/or salt)? If salt water is used, what brand and how much salt to water do you mix it with? ... Fresh water,Salt water (glub)soon to be mixed myself 12. Decholorinator used? If so, does it have stress coat in it? Dechlorinated,bottled water,same as used in my aquariums. I have not yet purchased Stress coat. 13. How deep are the water dishes? 1 inch 14. Do you use sponges in the water? If so, how often are they exchanged and sterilized? No sponges. 15. How many crabs are in the tank? Four. 16. How long have you had them? 1-2 months 17. Do you know what species they are? Purple pinchers 18. Have you had a successful molt with them? No 19. If you take them out of the tank for a length of time, do you mist their gills first? No,should I? 20. Do you bathe them, if so, in what kind of water and how frequently? Once a week,dip in good water,dry. 21. Are there any unusual odors in the tank? If so, what are they like, like a gym sock smell, fishy smell, etc? No odors. 22. Has there been anything new added to the tank recently? No. 23. Are your hands clean before handling the crabs or anything in the tank? Yes,always washed,I smoke, outdoors only. 24. Has there been any smoking, candles, perfumes, hair sprays, air fresheners, or paint near the ‘tat? No. 25. Do you use anything to clean the tank (inside or out) such as glass cleaner, bleach, etc? if so, is it with the crabs in or out, and if out, how soon are they returned to the 'tat? No,just good water wipe inside and out.