Green algae can damage your pool and its accessories. Moreover, their proliferation can be dangerous for bathers. This is because these algae make surfaces slippery and promote the development of bacteria or fungi. So, you need a pool shock from time to time. So what is the best pool shock for green algae?

Pool Shock for Green Algae: The Top 8 Reviews
In the review below, we have chosen 8 best pool shock products for green algae. Check them out.
1. Clorox 32oz Green Algae Eliminator2
Suitable for pools and spas, the Clorox Eliminator2 is an algaecide for green algae. It is a non-foaming solution for every type of pools, including the saltwater pool. The algaecide is effective for preventative treatment and for outrightly killing green algae. It also kills black algae and mustards.
We recommend that you make use of the Clorox 32oz Green Algae Eliminator2 once every week for the pool’s regular maintenance routine. Follow this up with the weekly brushing and cleaning for the removal of debris and dirt that may cause the appearance and proliferation of algae.
2. In The Swim 1/2 Gallon Super Pool Algaecide
The Super Pool Algaecide from In The Swim is also a concentrated and non-foaming formula. This pool shock product acts very fast, saving time as well as money. It works on all algae types, and you can apply it to both the above and in-ground pool.
Meanwhile, before applying the algaecide into your spa or pool, scrub it with a brush. Then backwash and clean your filter. Next, empty the pump and skimmer baskets and put on the circulation pump. Now you have to shock-chlorinate with the In The Swim formula, based on the water volume. Pour the recommended dosage in a container that is chemical-safe. Mix with recommended parts of water. Finally, gently pour the mixed solution in the pool water, just around its perimeter.
3. HTH 67032 Super Algae Guard
The latest formula of shock treatments is here from HTH Pool Care, and it’s faster-acting than ever. The HTH 67032 is an algaecide cleanser for all swimming pools. It’s a great addition and fits right in as a part of your regular four-step pool care program.
Most importantly, you can prevent and kill algae with the new all-in-one HTH super select shock treatment. It not only shocks and super chlorinate your pool to destroy bacteria. The product also controls and kills algae, providing crystal-clear results in 24 hours. The HTH 67032 Super Algae Guard can raise the chlorine level up to 10 ppm. It can treat 12,500 gallons of water and is for all types of pools.
4. Pool RX 101001 6-Month Algaecide
The Pool RX 101001 eliminates all algae, and it reduces your chemical usage. It has a copper sulfate active ingredient. But it comes in different sizes for ease of use. The solution can treat 7,500 to 20,000 gallons of water. It contains enough ingredients for a pool that’s 20,000 to 30,000 gallons.
First, ensure you test the pool and make sure the water is balanced. Test the water and ensure you keep the free chlorine low. The pH should be within range; alkalinity can be a little bit high, conditioners a little bit low, and ensure there are no metals in the pool. If the chemistry looks good, simply take your skimmer lid off. Put it into your skimmer basket. The Pool RX will last up to six months in your pool. So that’s pretty much for the whole pool season.
5. Clorox Pool&Spa XtraBlue
Sometimes your pool needs a sudden burst of chlorine to destroy contaminants that cause dull cloudy water. With Clorox Pool and Spa XtraBlue, shocking your pool takes just three steps. The Clorox easy 1 2 3 pool care brand system lets you shock your pool weekly and more frequently after heavy use, rainfall, high temperatures, or an influx of debris.
Clorox Pool&Spa shocks dissolve quickly. To prevent surface bleaching, add the formula to the deepest end of your pool. Spread the product across the surface. Clorox Pool&Spa’s easy-open, easy-pour shock bottles make it simple to shock. The containers can be recycled, unlike traditional shock bags.
6. McGrayel Algatec for Green, Yellow, and Black Algae
Algatec is an algaecide that works on all types of algae. The three main things that we like about it is that it’s fast-acting. There are no metals in it, which means the solution won’t cause staining when you use it. Unlike other algaecides out there, it doesn’t use your chlorine to work. This means you can use it with or without chlorine. We, however, recommend shocking with chlorine.
That way, the shock, and the Algatech can work together synergistically to kill out your algae.
One tip that we would give when doing a treatment is to always clean your filter before, during, and after the pool turning around. Once it’s clear, always clean the filter. That way, you’re starting fresh. Then you won’t have an uphill battle or any more problems during your pool season.
7. Kem-Tek KTK-50-0006 Concentrated Algaecide
The Kem Tek KTK-50-0006 is a concentrated algaecide suitable for your pool and spa. It helps clarify pool water, giving it a long-lasting guide against all algae. The product is a polyquat 60 algaecide. You can use it for winter-closing of your inground pool.
The concentrated formula is non-foaming. A single unit can treat between 7,500 to 20,000 gallons. This algaecide eliminates all types of algae, reducing chemical demand. The action is effective for up to six months. It simplifies pool care and is also ideal for all pool shapes. You can use this solution for preventing and treating green algae.
8. SeaKlear 90-Day Algae Prevention & Remover
The SeaKlear product is a reliable and effective algaecide. The SeaKlear concentrate prevents and kills blue-green, green, black, and yellow mustard algae. It’s non-foaming and non-staining. The product contains 11.8% Copper Sulfate Pentahydrate, 3% Copper as active ingredients.
Each treatment with the non-staining formula will last three months. Use 16oz fluid for 10,000-gallons of pool water for algae growth prevention in all types of pool. For the treatment of severe algae problems, use 32 ounces of the product.
Frequently Asked Questions
Q: How much shock do I need for a green pool?

A: Having green, blue-green, or dark-green swimming pool water means you have a medium presence of algae in the pool. To treat and prevent further infestations, you have to triple-shock the pool. For this, you’ll need 3-pound algaecide for every 10,000-gallon pool water.
Q: What naturally kills algae?

A: Perhaps you don’t want to use chemicals, there are natural and safer methods, although not as effective. Barley straw slowly kills algae. Floating plants like lotus and lilies are also helpful. They shield the pool from the sun and also control algae growth. Parrot’s feather, anacharis, and hornwort are also great alternatives to chemicals.
Q: Will shocking the pool kill algae?
A: Shocking the pool isn’t only useful in killing algae; most products will also prevent new infestation or proliferation within a period between a few weeks to 3 months.
Conclusion
There are over 30,000 algae species. However, green and black algae are some of the biggest nightmares of pool owners. There are even species that are resistant to chlorine, which makes algae a continuous challenge in keeping pool water clean. However, we’ve recommended to you what we discovered are the best pool shock for black algae and green algae. Choose one of these, and this problem will be long gone in your water facility.