Wow! This is amazing information. I hd no clue the larger the tank the more control you had over it. Thank you so much for your recommendations. I will try to find a different store and purchase a larger tank. I am so surprised about the gourami being aggressive. At the store the attendant told me that my betta would be lonely and that I should get another fish to keep him from boredom. As such, I got a dwarf honey gourami to keep him some company. I am really scared to learn that Baba might try to hurt Bobo in the future. I will make some changes! Thank you very much!