Alright so I currently have an empty cycled 29 gallon tank. It has about 3 inches of black sand as substrate with an external power filter (aqua clear 70). It also has a heater and an aeration stone. I’m going to list the stuff that I have to work with but none of it has to be used it’s just what I have to work with for a new idea- I have a lot of lava rock, tall bushy fake plants, I have a few (6) cichlid stones of all different sizes, and I also have a large fake tree stump. I don’t want a community tank of 10-30 fish. I want a center piece type fish or invert or fully aquatic amphibian that would pop on black sand. The reason this is a little hard for me to think of is because the main food I would feed it cannot be living or have to be refrigerated. I want some crazy, unique, or cool ideas that you guys/girls can come up with. The main thing I wanted to do was a pure white Cherax Albidus crayfish as a species only tank but they are just about impossible to find in the USA. I was also thinking of having an orange, blue, and white dwarf crayfish all in the same tank but I can’t find a common dwarf white species of crayfish. After those ideas I was thinking maybe an axolotl would be really neat to have but they hate current in the tank and don’t like it when it gets too hot. Then I thought maybe an African butterfly fish, although very unique they are only brown and aren't very active. I also thought maybe fire belly newts? I don’t think they would like an external power filter though. My most recent idea was having 3 German Blue Rams cause they are a magnificent color but they like ph of 5 and mine is 7-8 so that was shot down fast. After all of these thoughts does anyone have any other ideas of what I could do? I’m open to almost anything.