I have been noticing some silver arowanas having a red coloration at the tips of the fins. I have always thought it looked so beautiful however, i mainly only noticed this red color on arowanas that range from 8-14 inches, and have never seen it on the monster aro's (24"+). does this condition only occur on middle aged aro's? I can see this coloration starting on my 4 incher, but i would like to know if there are any ways to make this color flourish and be, well, permanent.