Seachem Flourish Excel Aquarium Plant Carbon Source, 500 ml Liquid for Planted Tanks

Seachem Flourish Excel is a 500 ml aquarium plant carbon source, formulated to provide bioavailable organic carbon for aquatic plants.

• Bioavailable organic carbon — provides aquarium plants with a source of carbon.
• 500 ml bottle — supplies Flourish Excel for repeated aquarium dosing.
• Initial dose: 5 ml per 40 L (10 US gallons) — gives a clear starting amount.
• Routine dose: 5 ml per 200 L (50 US gallons), daily or every other day — supports straightforward ongoing use.
• Safe for fish; dose every other day in aquariums with Anacharis — helps guide use around this plant.

Aquarium plants need a source of carbon, and Flourish Excel is made for aquarists looking for a convenient source in bioavailable organic form. It is intended for planted aquariums, with a dosing schedule that distinguishes first use or a major water change from routine dosing. Seachem has more than thirty years of experience in the aquarium hobby, and its chemists, biologists, and employees are hobbyists who keep aquariums.

What does Flourish Excel provide for aquarium plants?

Seachem Flourish Excel provides bioavailable organic carbon as a source of carbon for aquarium plants. The product is designed for use in aquariums rather than as a food or treatment for fish. Its stated role is to supply this plant-useful carbon source in a convenient liquid form.

• Purpose: provides organic carbon for aquatic plants.
• Format: liquid aquarium product in a 500 ml bottle.

How much Flourish Excel should I use?

For first use or after a major water change of more than 40%, use 5 ml for every 40 L (10 US gallons). After that, use 5 ml for every 200 L (50 US gallons) daily or every other day. Each cap thread holds approximately 1 ml, which allows smaller doses to be measured.

• Use the initial amount after a major water change greater than 40%.
• Choose daily or every-other-day dosing for routine use.

Can Flourish Excel be used with fish and Anacharis?

Flourish Excel is safe for fish. If your aquarium contains Anacharis, use the product every other day rather than daily. This dosing adjustment is specific to aquariums with Anacharis.

• Fish: safe for use.
• Anacharis present: use every other day.

Flourish Excel suits aquarium keepers who want a measured liquid source of bioavailable organic carbon for aquatic plants and a defined schedule for initial and routine use. Seachem is independently and privately owned, and its products are developed within a company culture shaped by aquarium hobbyists and staff with scientific training. For aquariums containing Anacharis, the product’s routine use is every other day rather than daily.