Northfin is a great food been feeding it for 2 years. That with krill pro is a great combo. We tried out the line and broke it down in a video.
Colour did improve some, i really noticed it with my goldfish, they had lost their sheen and since feeding are all super shiny. I found the finnage on my cichlids to be amazing too and really start to take off about a month later. We should have thought to put photos in, I'll have to see what we have.Not bad. Now all you need is before and after images of fish to compare the difference it make in coloration