I've got a 45 gallon with 2 platies, a gourami, rt shark, pictus and bumblebee cf, and 2 kuhlI loaches. Please don't lecture me on how I am overstocked because I already know that the pictus and rt shark need a bigger tank and I am working on finding a bigger tank for them. Also, most of my older fish are starting to die off from old age. But I would like to get a school of kuhlis so that they are as active as possible. How many can I fit in my tank so that they are happy, but I will still have some room for some other small schooling fish?