This new forum is great! My tank has been up about five months now and is doing great! I went through a few poblems in the beginning but all is fine now. As the subject shows, I want to add more live rock to my tank since I have so little. Any suggestions as to go about it without hurting my fish/inverts? How much can I add at a time? (I can only afford about 20lbs max at a time) Also on a similar topic, does adding live sand cause problems to a cycled tank? Any advice would be great!