Thank you! There is a lot of wonderful inspiration here. Lots of studying and budgeting to do. Very exciting!This is a really good start! I am a big fan of macro algae and its a big challange.
If I'm allowed to come with some of my experience I would say that lighting is one of the key ingredients. My previous 200 litre tank had 4 pieces of T5HO 54W. Go for daylight (about 6300K). Do not use lighting for tropical aquariums.
You have to dose some nutrition on a weekly basis:
Iron and iodine
The weekly water changes are important to maintain the level of potassium, manganese and other trace elements. Start with 20% and increase if you need to.
When you have so much light regular hair algae starts to grow in a alarming level, so if there are some algae eaters in Pudget sound - Go and find them.
If that doesn't help, you need to have hard laminar water flow that shifts direction often (every 30 seconds). When I say hard I mean storm.
Some of the macro algae makes the water yellow and it can lower the pH. Ozone can help. Activated carbon will not help in my opinion.
I dont want to spook you, but its a challenge to keep macro algae. But the reward when it grows is fantastic! Dont forget to post more pictures and your progress.
Good luck and enjoy this fantastic hobby!
(Sorry for my bad English, Im from Sweden)