FREE Ball with Arden Grange + £3 EXTRA off - SEE CODE >

Seachem Flourish Excel

A source of bioavailable organic carbon that caters for aquatic plants

At a glance...
  • Organic carbon for planted aquariums
  • Oxygenates aquarium water
  • Iron reducing properties
In stock
Price Match
From Regular Price
Good quality and branded aquarium products at the best prices. Received delivery within 2 days and will order again from Swell UK.

What is Seachem Flourish Excel?

Seachem Flourish Excel is a bioavailable organic carbon source for your aquarium. The treatment adds organic carbon, CO2 and chain carbon compounds to your aquarium water to encourage plant growth so you don't need to invest in a complex and unsightly CO2 system. Flourish Excel also combats the algae growth within your aquarium so you can get rid of common pests like Black beard algae and green water. Most importantly, the solution is safe to use, it features a safety cap thread and will not harm any of the plants, fish and shrimps within your tank when used correctly.

How much Seachem Flourish Excel should I use?

On initial use, or after a water change of 40% or more, use 5ml for every 40l of aquarium water. Use a smaller dosing of 5ml for 200 litres daily or every other day after this. Dosing may be slowly increased in a high-growth aquarium with lots of aquarium plants.



Brand Seachem


Model Volume Treats
453 500ml 4000 litres / 1000 gallons
456 250ml 2000 litres / 500 gallons
455 100ml 800 litres / 200 gallons
458 2l 16,000 litres / 4000 gallons
459 4l 32,000 litres / 8000 gallons
Write Your Own Review
You're reviewing:Seachem Flourish Excel
Your Rating