The summer diving season will be ending in the next few months, and macroalgae stocks will begin to decline. As a result, we are running a week long special so you can't tell us later we never told you certain species would go out of season. All macroalgae is sale priced on the site and you can take an additional 10 percent off with the code "10 percent". You can find our in stock macroalgae selection here. Discounts cannot be applied towards rock.