Seachem Laboratories Flourish Excel Plant Supplement, 1 gal

For the dedicated aquascaper running larger or multiple planted tanks, Seachem Laboratories Flourish Excel Plant Supplement comes in this generous 1 gallon size. It is the same bioavailable organic carbon source aquarium keepers rely on, just in a bulk format built for ongoing dosing without constant refills. All plants require carbon, and Flourish Excel gives your underwater garden a steady, accessible supply.

• Supplies a source of bioavailable organic carbon that every aquatic plant needs to grow.
• Offers carbon usually obtained from CO2, here derived from simple organic compounds such as photosynthetic intermediates.
• Can be used on its own or in conjunction with CO2 injection, so it fits a range of setups.
• Delivers substantial benefit either way, since producing and building on photosynthetic intermediates occur simultaneously.
• Pairs especially well with CO2 when adding more CO2 could result in dangerously low pH levels, per Seachem.
• Has iron-reducing properties that the brand says promote the ferrous state for plant use.
• The 1 gallon volume is ideal for large aquariums, fish rooms, and high-plant-density aquascapes.
• Helps you keep a consistent dosing schedule across several tanks at once.
• Carries you through long stretches between reorders, a practical choice for serious hobbyists.
• Supports fuller root and shoot growth as part of a complete planted-tank routine.

When you are maintaining a big display aquascape or a whole shelf of planted tanks, running out of supplements mid-week is a real headache. This 1 gallon bottle of Flourish Excel is sized to keep up with you, so dosing carbon becomes a simple, repeatable habit rather than a chore. Seachem notes the combination of Flourish Excel and CO2 is particularly ideal in cases where continuing to add CO2 could push pH dangerously low, giving you a way to feed your plants while protecting your water chemistry. Because the carbon here is bioavailable, your plants can put it to work building the leaves and roots that make a tank look full and healthy. Folded into your regular fertilizing routine, this bulk bottle helps your aquatic plants stay green and growing season after season. For anyone who has graduated to bigger or more numerous tanks, it is the carbon supplement scaled to match your ambitions.