Alright so I just have a quick question, I recently got a baby Oscar just a couple days ago and it swims around the tank, is energetic, and eats regularly (3 times a day)... except when I approach the tank, it'll swim away into its cave. The tank I have is a 75 gallon, and everything looks fine on him, and all-in-all he is a very active and healthy-looking Oscar. He's about 3 inches long. How long should it take for him to acclimate to me? Thanks