Just bought 100lbs of pool filter sand for my new 55 gallon tank. I want to keep the the Decor (Rocks) I put in a light color to match the sand. Any suggestions? Is there any "live" rock for saltwater tanks? (this tank will be around 8.0ph with african cichlids. And lastly i want to purchase artificial plants, which are the best meaning they look the most realistic? Thanks.