Running carbon is not the problem, when I said carbon dosing I meant adding vinegar, vodka, or synthetic carbon (this is used as bacteria food for good bacteria, but can also cause blooms in the water).
We need to get your parameters. What is your nitrate, calcium, alkalinity and temperature? Do your inhabitants seem distressed, or are they ok?
I generally don't dose things like strontium and iodine because we cannot test for them accurately. There are a few specific things you might dose those for, but overall water changes are going to keep your levels at a good range.
I also wouldn't dose calcium without measuring your levels regularly. if you have very few corals then your calcium shouldn't be decreasing rapidly. Again, water changes should maintain your calcium and alkalinity if you don't have a lot of corals.
What are you trying to feed with your reef roids?
I would cut back on all dosing and take measurements and let us know.