algae and nitrates

[pro2k]

Will high nitrates cause green algae?

[dakar]

Nitrates are in fact one of the key 'foods' for algae to grow (and spread rapidly), nitrate control is what most practice and in turn helps keep algae down to a minimum.

The use of a refuge to control just what type and where algaes are allowed to grow is a great way to export nitrates.