I Have had a 10 Gallon tank for approx 3 years. I finally upgraded to a 36 gallon tank with the appropriate filter and heater kept at 75-76. I have a wall bubbler too. Its been set up and running for 3 weeks now. with the 4 4ish I have in it and the Live Plants the bacteria has begun to settle. I just recently added a fiddler crab to the tank along with a suctioned landing for it to crawl on. I am so Enamered by the crab that I am interested in adding a couple more. Please advise where I can purchase a Vampire Crab or a Patriot Crab online. I have been to numerous Websites and cannot find any sites that sell them. I would appreciate any advice. Thank You.