I'm just getting back into reefing after 20 years. I just recently joined R2R . The information has been great, but I see a lot of posts about dosing. Our tank is still young at 5 months but still thriving! I do water a 10 percent water change every 2 weeks. Skimmer, refugium with Chaeto. Started with 120 lbs of live sand, and 25 lbs of maricultured live rock with dry rock. Adding 40 to45 lbs more live rock once cured. I have had few problems. Am I missing something about dosing?