Ok 1st here is what I am told, over dosing with phytoplankton is worse than feeding your fish 3 times the norm for three days straight, especially if its with the expert series formula.
Here is what I do, there is a set amount I feed all my inverts, its your choice you can either take that amount and dose the tank once a week or spread it out like every 3 days. That amount depends on how many corals and anenomies or any other inverts that feed on plankton. With all that I have in my tank my dosage is a half a capful of the Phytoplex once a week, and the dosage I am going to explain to you of the chromax.
The proceedure I use to get the product to the tank is easy but critical. For the Phytoplex I measure out 1/2 capful. Then I pour that into a holding cup, with my sea squirt feeder (like a turkey baster) its got more of an eye dropper end and its very long. I suck up small amounts and dose the corals and inverts that require it. What ever doesnt get consumed by them goes to the tank and they filter feed. The second part to this and the most critical is the Chromamax Expert. This is very concentrated and has millions of particulate of plankton per drop. This in particular is the one that can hurt your tank, 2 drops from an eye dropper is enough to crash my tank. Anyway, I take another holding cup and fill it with some tank water about 1/2" to 3/4" of water in like a small drinking glass. Then I add one drop of the expert chromax, mix it up. I dose my other inverts with that, particularly my flame scallop and my anenomie. Your other inverts will also benifit from this as well its just they prefer the smaller plankton. I DO NOT USE IT ALL, only about 1/3 to 1/2 of that mixture for them.
The reason for transfering every thing to a holding cup is the plankton bottles have a preservative in them, it keeps it from going bad. If you get water on the supplied eye dropper and put it back into that bottle you will skunk the whole thing. I dont know about pricing where you are but the expert series plankton was $25.00 a bottle for me. It should last about a year though.
The Phytomax is a bigger bottle and is not as concentrated so I dont dilute that in water. The expert is extremly concentrated and thats why you would need to dilute it. Especially if you do both at the same time.
Ok hope that helps, its not complicated at all but you see what I mean about transfer from bottle to tank.
Good luck, Im no pro by any means and this is new to me too, but what ever I find out I like to offer in hopes that it helps someone as it has me. :joy: