I have a 180 gallon tank,with Angels,Wrasses,Tangs,One puffer. 75 gallon with saltwater fish with liverock.155 gallon bowfront with 4 fish. Lion,Naso,Trigger,and shark.
I just looked @ your gallery I am really hoping that the black tip is in a different tank. I have had many of these sharks & the tanks you have described are way to small.
An example that shark will out grow even this tank of mine @ 1320 Gallons