Seachem

Seachem Flourish Excel Planted Aquarium Supplement For more than 30 years aquarium hobbyists have turned to Seachem Laboratories for products designed by chemists and biologists. To give aquarium plants an additional source of bioavailable organic carbon turn to Seachem Flourish Excel. Use it either alone or in conjunction with CO2. Seachem Flourish Excel introduces photosynthetic intermediates and also has iron reducing properties.