SKU: 30793566830

Seachem Amguard

Sale price$137.70 Regular price$153.00
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

Seachem AmguardSeachem AmGuard Seachem AmGuard detoxifies free ammonia for up to 48 hours, making it ideal for emergency situations and safe to use during tank cycling. Detoxifies Ammonia for up to 48 hours Ideal for emergency situations More effective than any other ammonia binding product Most concentrated product on the market Seachem AmGuard safely, rapidly, and efficiently removes toxic free ammonia. It is safe to use during tank cycling and is ideal for

Seachem AmGuard

Seachem AmGuard detoxifies free ammonia for up to 48 hours, making it ideal for emergency situations and safe to use during tank cycling.

  • Detoxifies Ammonia for up to 48 hours
  • Ideal for emergency situations
  • More effective than any other ammonia-binding product
  • Most concentrated product on the market
Seachem AmGuard safely, rapidly, and efficiently removes toxic-free ammonia. It is safe to use during tank cycling and is ideal for treating unexpected emergency situations. AmGuard™ reacts with free ammonia within minutes and does not alter pH. Ammonia can exist in two forms: free and ionized. It is only the free form that is toxic. Traditional ammonia test kits convert all ammonia to free ammonia by raising pH to 12–14; at this pH no ammonia-removing product can function, and thus a false positive reading will result. Use Ammonia Alert™ orMultiTest®: Free & Total Ammonia to directly monitor levels of free ammonia. AmGuard™ also removes chlorine and chloramines.
Why It's Different

AmGuard™ is the strongest liquid ammonia binder on the market. It works within minutes to detoxify free ammonia, and it doesn’t degrade for nearly forty-eight hours. That’s nearly twice as long as our competitors’ products.

Directions

BEGINNER: Use 1 capful (5 mL) for every 200 L (50 gallons*) daily or as needed to reduce ammonia. (Note: The 2 & 4 L container’s cap is 10 mL). ADVANCED: If you have an Ammonia Alert™ that is reading alert, then use 1 capful (5 mL) for every 400 L (100 gallons*) daily. If it reads alarm, then use 1 capful for every 200 L (50 gallons*) daily. If it reads toxic, then use 1 capful for every 80 L (20 gallons*) daily. EXPERT: If using our MultiTest®: Free & Total Ammonia test kit, use 1 capful (5 mL) for every 40 L (10 gallons*) to remove 1 mg/L (ppm) of free ammonia. Alternatively, you may employ the following formula for a variety of ammonia and water levels: 0.125AV=m (for volume in liters) or 0.5AV=m (for volume in gallons*). A=ammonia concentration in mg/L, V=the volume of water being treated, and m=the volume of AmGuard™ to use in mL. For example, to remove 1 mg/L of ammonia in 100 gallons* you would use 0.5*1*100=50 mL. If the water temperature is above 30 °C (86 °F) do not use it.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30793566830

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4.7 ★★★★★
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Michelle
Draper, US
★★★★★ 5
Protect your skin
Size: 6 Ounce (Pack of 2), Style: SPF 50
I really like this sunscreen spray. It’s easy to apply, dries quickly, and doesn’t feel greasy on my skin. The SPF 50 protection works great, even when I’m outside for a long time. It also stays on well when I sweat or get in the water. Overall, it’s a reliable and convenient sunscreen that I’d definitely recommend.
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Reviewed in the United States on March 20, 2026
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Reighlye
Alexandria, US
★★★★★ 5
Awesome value for quality Banana Boat sunscreen
Size: 24 Ounce (Pack of 1), Style: SPF 50
Inside the package you get 2 sprays and 1 lotion, each 8oz. For the price, you really can’t beat it. Banana Boat is a staple sunscreen especially for my nieces and nephews who can go through a bottle of sunscreen in just a couple weeks. I like the lotion for base layer, and spray for reapplication when they don’t want to sit still, haha. The sport formula is great, it blends and goes on without much hassle. Definitely sweat resident too!
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Reviewed in the United States on May 14, 2026
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De Marby Reviews
Carnegie, US
★★★★★ 5
Excellent Coverage and Very Easy to Apply
Size: 6 Ounce (Pack of 2), Style: SPF 50, Size: 6 Ounce (Pack of 2), Style: SPF 50
I bought this Banana Boat Sport SPF 50 spray about six months ago, and it has worked perfectly for all my outdoor activities. It provides strong and reliable sun protection, even on very sunny days, and I really appreciate that it protects from up to 98% of burning rays. I’ve used it at the beach, walking outdoors, and even on long days outside, and I haven’t experienced any sunburn. The spray format makes it very easy to apply—quick, even, and mess-free. It absorbs fast without feeling sticky or heavy on the skin, which is something I love because I don’t like sunscreens that leave a greasy layer. It’s also water-resistant, so it stays on even when I sweat or go into the water. Overall, this sunscreen is ideal if you want strong protection, easy application, and a formula that feels comfortable on the skin. I would definitely buy it again and recommend it for anyone who spends a lot of time outdoors.
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Reviewed in the United States on December 3, 2025
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Inlet Sound
Belleville, US
★★★★★ 5
29 years of riding a Harley, THIS is the best sun protection I have found for long SUNNY day rides!
Size: 6 Ounce (Pack of 2), Style: SPF 50, Size: 6 Ounce (Pack of 2), Style: SPF 50
This is my "Go To" Sunscreen of choice that I find is the best to quickly spray my arms down good before a long Harley Motorcycle ride! I have tried many brands and styles from creams to face specific to lip balm but this one can does it all in my case! I quickly spray my arms ( no rubbing in required ) and a quick spray in my hand and I then rub my nose and ears , face and i'm ready to ride and I am protected! Most times I only apply this product once a day and works better than anything else for my needs. I am light skin but I have ridden lots this Summer and my arms never burn and now have a deep tan as we are entering fall... I made the mistake of trying a store brand that looked like this product but was oily and never used it but once! This Banana boat once sprayed on my arms, I never think about it again as its gone but still protecting my skin! This is the best I have found after 29 years or riding a motorcycle to protect my skin with the least amount of trouble , No strange or tropical smell, NO greasy feel just quick applied lasting sun protection that has proven itself mile after mile! The BEST Sun product I have found!
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Reviewed in the United States on October 7, 2025
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Carolyn M Thomas
San Leandro, US
★★★★★ 4
It is quick to apply and I've never gotten a burn with it. It doesn't leave marks on my clothing.
Size: 6 Ounce (Pack of 2), Style: SPF 50
I've used this product for years. I spray it into my hands to apply so it doesn't go out into the air. I have never gotten a burn with it and it is. so easy to apply. I don't have to worry about white marks in my clothes. It doesn't take long to apply.
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Reviewed in the United States on March 30, 2026

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