I think the tiger cuke should be in a tank larger than 5g.I was thinking of having a Pico tank with cool inverts that can't be in a display tank. This tank will be plumbed into my main display, so the problems of water quality will be negated. I was thinking of having zoas, acans, and leathers in the tank as well. Current stock list is 6 sexy shrimp, 3 pom pom crabs, a pair of bumblebee shrimp, 1 porcelain crab, 1 emperor shrimp and tiger sea cucumber pair.
Any issues with the stock? Any advice? How big will the tank need to be? Maybe fluval spec 5?
What are your thoughts of a harliquin shrimp? Do they only eat the tube of the star fish or the whole leg? I heard reports of both. Since they are messy eaters, if I have some nassarius snails will that help?
Harlequin shrimp only eat the tube feet. However, the star doesn't die until the shrimp finishes it. Instead, its venom just paralyzes the star, so as long as you remove the star once the shrimp is done, there should be much pollution to the tank.