For sure, balancing import vs export. In the OPs situation it seems he is having trouble getting algae under control so he either needs to lower import or increase export.
Lowering import was just a suggestion to help with the algae problem and maybe save some money.
He could also increase export (bigger water changes, better skimmer, etc) but that all costs money too.
I think he could buy a one head dosing pump, dose AFR (which includes trace elements) and cut back on some of the high po4 additives until things are under control.
This is a fairly new tank and a lot is being thrown at it.
I also feed heavy (the fish), but don’t have algae issues…but use a lot of export methods.
We all want the OP to be successful and there are many ways to do it. He’s going to have to research and find what works for him.
I don’t feed coral foods, you do. We are both successful…no nuisance algae. Each method works for us. You can do it because your tank is po4 limited, I’m not gonna throw a bunch of coral foods in because my tank runs at about .1 po4.
A lot of variables in this hobby. OP I’m sure you’ll get it figured out with time and more experience.
OP, here is my goni garden. None of these gonis even know what reef roids are and some have been with me 2+ years. Just some food for thought. There are very few absolutes in this hobby.