Brightwell Reef Biofuel Liquid 67 oz. (2 L)
Provides 14 essential elements critical to the long-term health, growth, and coloration of aquatic plants. The elemental ratio is based on current scientific understanding of the general requirements for unrestricted growth of tropical aquatic plants.
Use this product to establish beneficial water parameters in new aquaria, replenish depleted elemental concentrations in tanks that rarely undergo water changes, or re-establish nutrient levels after large water changes. Ideal for planted aquarium hobbyists seeking a simple, reliable solution for routine plant care.
Contains 0.001% iodine to support crustaceans such as shrimp in molting and growing.
Key Features
| Element | Concentration |
|---|---|
| Iron | 0.001% |
| Calcium | 0.001% |
| Magnesium | 0.001% |
| Phosphorus | 0.001% |
| Other 14 elements | As required for plant health |
FAQ
Can this product be used in both freshwater and saltwater aquariums?
This product is formulated for tropical aquatic plants and is best suited for freshwater planted tanks. It is not recommended for use in saltwater environments.
How often should I use Brightwell Reef Biofuel Liquid?
Use as needed to replenish nutrient levels—typically every 4 to 6 weeks in tanks with infrequent water changes or after a large water change.
Does this product contain any harmful chemicals or additives?
No harmful chemicals or additives are present. The formulation is based on extensive research and is designed to support plant health without introducing toxins.

Oliver Churchill –
My planted tank has grown much more vibrant since I started using this liquid. The plants are greener and more active. I use it every 6 weeks and have noticed a steady improvement in color and growth.
Liam McLean –
It works well for maintaining plant health. The iodine helps my shrimp molt properly. I didn’t see any issues with water chemistry, and the product is easy to mix.
Rose Reid –
Great for beginners. I used it after setting up my new tank and it helped establish stable plant growth. The instructions are clear and the liquid mixes evenly.
Abigail Simpson –
It’s effective, but I found it necessary to use it more frequently than expected. My plants didn’t show immediate results, so I may need to combine it with other supplements.