EricTMah
Aquariums by Design
I've fixed many tanks with similar issues as yours, Mike.
After removing all your corals to a safe home you can start.
You'll need three separate buckets of tank water and one large empty one.
Pull the rock one piece at a time. Place in empty bucket and use a metal bristle brush from Canadian tire or princess auto. Scrub as much as much and hard as you can. Then dip and rinse in the first bucket. Repeat the scrub again and rinse in second bucket. Rinse one last time in the last bucket of tank water, then back into your tank. Once all rock is done. I'd do a lights out for three to five days. Keep skimmer going as it's going to pull a ton of crap out. After the lights out. Get your lights on a reduced lighting schedule. Say 50$% of original amount of time. After a few days with lights back on. Check the rock. If it needs another go. Do it again. Usually once or twice doing it like this followed by darkness then reduced lighting for a couple of weeks should solve all your algae issues. With obviously fixing any no3 or po4 issues along the way as well
Sony Xperia Z3
After removing all your corals to a safe home you can start.
You'll need three separate buckets of tank water and one large empty one.
Pull the rock one piece at a time. Place in empty bucket and use a metal bristle brush from Canadian tire or princess auto. Scrub as much as much and hard as you can. Then dip and rinse in the first bucket. Repeat the scrub again and rinse in second bucket. Rinse one last time in the last bucket of tank water, then back into your tank. Once all rock is done. I'd do a lights out for three to five days. Keep skimmer going as it's going to pull a ton of crap out. After the lights out. Get your lights on a reduced lighting schedule. Say 50$% of original amount of time. After a few days with lights back on. Check the rock. If it needs another go. Do it again. Usually once or twice doing it like this followed by darkness then reduced lighting for a couple of weeks should solve all your algae issues. With obviously fixing any no3 or po4 issues along the way as well
Sony Xperia Z3