Seachem Flourish Excel, 2 Liter

** Seachem Flourish Excel Bioavailable Carbon** Seachem Flourish Excel is gaining a reputation among aquarium enthusiasts seeking to enhance plant growth while tackling algae problems. Mixed reviews reflect varied experiences, primarily centered around its effectiveness for aquatic plants and its impact on algae control, particularly blackbeard algae. Many users noted a significant improvement in plant health and vitality upon using this organic carbon source, highlighting that it supported lush growth and contributed positively to overall water quality. However, caution is advised as some users have reported serious negative impacts on specific fish species, notably the Pygmy corydoras, which experienced fatalities shortly after dosing. This raises concerns about the product's safety for certain inhabitants in a tank, indicating that while it may be effective for plant growth, it can also be lethal to sensitive fish if not administered carefully. Additionally, there's feedback regarding the dosing cap, which some found to be inflexible and unsuitable for smaller tanks, potentially complicating usage for those with different tank sizes. In summary, Seachem Flourish Excel serves well for enhancing plant growth and reducing specific algae types, but users should be aware of the potential risks to certain fish and should measure doses thoughtfully. **