Hello, I am researching to set up a 3 gallon tank for 1 male betta. As a kid I did own two bettas at separate times, but I did not know the proper living conditions for them at the time. Each lived for about a year. I'm looking now for a companion to help keep the tank clean and ghost shrimp seemed like a popular choice. once again I will be getting a 3 gallon tank, with a filter, and putting in 2 silk plants. Would i be able to keep ghost shrimp (1-2) in a tank that size? Are they a good choice? If so what is the recommended number? Any other companion suggestions for a 3 gallon are also appreciated 