If I were to make an instagram and post pictures of my fish and other pictures of fish from people who want there pictures to be shown, do you think you would send in pictures of your fish? (Or is this a bad idea?)
Good idea. I'd contribute to it. But like someone mentioned, just remember to give credit to the owner. I've seen it way too many times on IG where someone finds their picture on a plant/fish account and they go after them with pitchforks for not giving credit or "stealing" the image.