Seachem Flourish Excel Bioavailable Carbon - Organic Carbon Source for Aquatic Plants 2L

Plants really take off after using for a couple days. Algae died off and isn’t able to take hold. Great product when used accordingly. Makes plants super healthy and will need to also make sure you give the plants root tabs to keep up the health and size.

This aquarium supplement helps keep my aquarium plants lush, while discouraging algae growth. It’s much easier than maintaining a CO2 system, and at 5ml per day for a 55 gallon aquarium, it lasts a long time. Good value for money.

Absolute must have for anyone keeping live plants in an aquarium. Excel helps your plants grow and out compete algae keeping everything healthier and more attractive. You could of course go with a hi-tech CO2 injection system, spending much more money and time but for most of us his is the best way to help get extra carbon to our submerged plants.

This is a great algae controller for planted tanks.If you regularly does fertilizer in your aquarium then you know that algae is a problem. Algae can absorb nutrients and Co2 better than most plants. So this is not so much liquid Co2 as it is a product that controls algae thus allowing your plants to use the Co2 and nutrients that are being consumed by the algae.If you read some of the negative reviews of it killing plants that is from overdosing it. I do not suggest the large initial dose it suggests on the bottle. I use a regular dose every day (75 gallon = 1 cap full. I have even used 2 caps if I have been lazy and not dosed thus letting the algae get out of control. This makes my plants thrive along with fertilizer such as flourish and flourish iron.This is also a great for a direct spray on spots of concentrated algae. Just put a normal dose in a syringe and spray algae directly. DO NOT SPRAY ANY PLANTS DIRECTLY.I also use a heavier dose (double my planted tank dose) in my unplanted tanks to control algae. This works very well to create next to no algae.

I was struggling with my plants. They were not growing, but this once a day..Boy do I see the difference. My pictures are taken 30 days apart.

I did a bunch of research before buying this product, and i am not let down. My plants are doing great. I still have black beard algae so i cant say much about it being an algaecide. I don't follow the directions either, i dose 3x the amount for my tank every day and have had no adverse reactions. I have shrimp and vallisneria and they both thriving.

This product worked wonders for my tank. I had battled black beard algae in the past but didn’t realize the root cause of it fast forward to now, I had moved and set up a new tank and started having the same problem again! So I started researching and it led me to realize my planted tank was lacking CO2. I had recently added more light and my plants started taking off tremendously and the BBA started to appear. I decided this was the product for me vs an actual CO2 line. I followed the directions and upon the initial dose (my tank is a 54 gal corner) it did make my water appear white and hazy even after a water change. I have a community set up from corydoras, oto’s, platies, nerite snails, dojo loaches and khuli loaches. All my fish handled this product well except my corydoras. I have a had time keeping those as is but those were my two survivors that I managed to keep alive and I believe this product did cause them pass. So just note that they may be sensitive to this product. I still give this 5 stars though. It did as it said and my tank is looking fabulous again!! It took about 2 weeks to clear up an minor infestation.

Been using this product for 20+ years, its great for supplementing CO2 injection or dealing with black beard algae. Never hurts my fish or snails. Good quality as always. Super easy to use. Lasts forever.