SeachemFlourish Excel 500 ml

I purchased this product after some plants I had bought introduced black beard algae to my aquarium. I tried a couple of other products prior to this with no luck. I tried spot treating with Hydrogen Peroxide and while that did seem to work, it was too difficult to use. I had the algae all over the tank to the point that the Hydrogen Peroxide just wasn't a practical solution.I've been using the Flourish Excel for about five weeks now. After maybe ten days to two weeks, it had basically eradicated my algae problem. I still have a couple of spots of green or brown algae here or there - but it's exactly that, just spots. I suspect the Flourish Excel works better or worse on different kinds of algae (as it completely destroyed my problem Black Beard algae) but even on the algae that it doesn't completely take care of, it certainly reduces it and holds it at bay.Additionally, the plants seem to love it. It took a couple of weeks before I noticed substantial enough plant growth that I was sure it was because of the products and not simply regular expected growth from the plants naturally. I have been using this product in conjunction with a shrimp safe liquid fertilizer and my plants have benefitted greatly. My Amazon Swords in particular have tripled in size since starting this product with the liquid fertilizer.Very pleased. Great product, with no side effects to the fish, snails, or shrimp and crawfish in the tank.

I recently purchased this for my aquarium and I must say, it has been a game-changer. Not only did it help my aquatic plants thrive, but it also helped in getting rid of black beard algae which I had been fighting with hydrogen peroxide for weeks. It is easy to use and the instructions on the bottle are clear and concise. I highly recommend this product to anyone who is looking for a reliable and effective solution to keep their aquarium plants healthy and free from algae.

Was super Suprised when I saw how my water lettuce was growing after adding!! I thought my water lettuce was healthy before , (no melting or yellow leaves) but when I added this my plants look way healthier! (More green and more furry) can’t wait to see more growth wish I had before and after pictures but this stuff works! My Java fern looking great because of it too! 🤙🏻

Seachem Excel is a great alternative to CO2 injection and a good off-label algaecide. My bulb plants (aponogeton and water onion) absolutely love this stuff and it causes explosive growth in many other plants with low to higher CO2 requirements. It helps plants use the nutrients available in the tank to combat algal growth. Do not overdose, especially if you have plants similar in structure to algae like marimo balls, aquatic mosses (including Java moss), or liverworts (ex: riccia). Upon initial use you should start with a low dosage and incrementally increase your dosage over the course of a week or so as to not shock your plants or cause more algae growth.Some species of algae like black beard algae grow when CO2 levels are random or sporadic, meaning you should dose Excel consistently everyday to see a real effect. Effective and a great product. Fair price.

This product in no way replaces injected co2. It is just a liquid form of carbon, and is a chemical known as gluteraldehyde (spelling is off). The only reason I use this product really is because I run heavily planted, very high light, dirted high tech tanks and inject presurized co2 and liquid fertilizers. This product allows me to run high light and fertilizers and keep algae to a minimum. This product 'excels' (see what I did there?) At letting you bump up light and fertilizers, while keeping algae at bay. Algae hates excel-like products, especially blackbrush algae, and any kind of hair algae. Also keeps any kind of spyro-gyra algae at bay. Must dose regularly and slightly more than recommended to get the algae negating effects. Do not dose more than twice what is recommended, and warm your fish up to it if they have never been exposed to it before. I dove straight into it with one of my tanks before and double dosed (horrible algae growing everywhere)because I was double dosing other tank and thought everything would be okay (both 20 gallons) and ended up killing 90% of my fish, even after doing huge water changes. This was not the products fault, it was my ignorance. You need to gradually work up to that strength or you will shock your fish. I enjoy flourish excel, and have bought it many times. I wouldn't use this product as a plant fertilizer though, only as an algaecide.