Do you have a link to said article? I would be interested in taking a look.
Sure, but if you are interested based on my question in this thread I think I have figured out the answer: Algae in scrubbers don't crash pH and don't use carb or bicarb because they have access to atmospheric CO2 which they prefer. And if you are just generally interested this is the tip of the iceberg. Algae are fascinating. We use them in space in life support systems, in nanobiotech as the silicon exosketelons of diatomes contain useful valves (it is this exoskeleto which clued us in that silicon based life is possible)... and in bio fuel/food reactors... We may well be burning algae fuel instead of fossil, eating it instead of meat, and reversing the accumulation of greenhouse gasses in the process. If we are facing catastriphic self-induced events in the next few decades, algae are likely to be centrally involved in the solution to some of those problems.
Here's the link, but theres tons of stuff on this and other algae related topcs: