I have 4 Hippocampus reidi for sale. All of them were bought from seahorsesource.com. I've had them about 7 months. When I got them they were yellowish. Now three of them have changed to black and one is a tan color. I think it is because my tank background is dark. They eat frozen mysis and enriched brine shrimp. They are all captive breed and females. I will sell them in pairs for $100.