More coral reef tank photography

I've been taking more and more pictures of my fish tank and I think that I'm slowly improving. The Canon FD 50mm/1.4 I picked up is a great lens for tanking pictures of my tank when I can get my images in focus. It is almost impossible for me to get my focus correctly on fish so most of my images are of stationary objects like the corals in my tank. Here is a one month progression of the tank. You can notice some subtle differences such as new placement of corals and hopefully a little bit of growth. I think my editing skills through RAW have improved greatly. Enjoy!