What does macroalgae need to grow?

Macroalgae will need primary good lighting plus Nitrate and Phosphate to grow, beside of a few minor minerals.

Most live algae species will grow well under a  full spectrum light or a lighting with a colour spectrum between 5000k to 8000k.

Daylight has a colour spectrum of 6500k, which will be good for most macroalgae species.

Beside of the major nutrients nitrate and phosphate marine algae will need some minor nutrients like Iron, Sulfate, Biotin, Manganese and Iodine, which will normally be added with your regular water changes or can be added with separate trace element additions.

If you like to know more about Nutrients for Marine Macroalgae

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