Like wesreyn said look at replacing the aqua blue with the coral +, the 3 blue + and 1 coral + is pretty blue, but it looks really good when all 4 bulbs are on. It is what I am running on my tank right now, and I really like it. The other option would be the kz new generation bulb it is similar to the coral +, but a little more expensive. IMO I would stay away from the ab special, it really does wash things out. Hth