Seachem

Seachem StressGuard Slime Coat Protection - Stress and Toxic Ammonia Reducer 500 ml

$19.56$20.80

1436+ bought in the past month

About this item

  • PROTECT: Seachem StressGuard is a premium slime coat protection product, working to reduce stress and ammonia toxicity whenever handling or transporting fish.
  • HEAL: Seachem StressGuard binds to exposed protein in wounds to promote healing of injured fish while reducing the likelihood of primary and secondary infections.
  • TREATMENT: The protein active colloidal agent in StressGuard actively seeks out any wounds, abrasions, or places where exposed proteins are and attaches to this area, helping to directly deliver the disinfectant in the product and start the healing process.
  • AQUARIUM CARE: Use 1/2–1 capful (2.5–5 mL) of StressGuard to every 40 L (10 US gallons) every 24 hours until signs of stress have abated or healing is complete. A dose of StressGuard may be safely doubled.
  • SAFETY: StressGuard has a pH of 7.0. It will not affect the pH of an aquarium, even at large doses, allowing for safe use in a reef or planted aquarium containing invertebrates
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Product details
BrandSeachem
Liquid Volume500 Milliliters
Item Weight1.15 Pounds
Item FormLiquid
ManufacturerSeachem Laboratories, Inc.
Technical specifications
item_weight1.15 Pounds
departmentUnisex-Adult
manufacturerSeachem Laboratories, Inc.
item_model_number523
date_first_availableJune 15, 2004
item_package_dimensions_l_x_w_x_h7.56 x 2.36 x 2.32 inches
item_dimensions_lxwxh6.6 x 2.4 x 2.3 inches
brand_nameSeachem
target_audience_keywordall fish, fish
directionsUse 1/2–1 capful (2.5–5 mL) to every 40 L (10 US gallons) daily until signs of stress have abated or healing is complete. Dose may be safely doubled.
country_of_originUnited States
model_nameStressGuard 500ml
size500 ml
materialPlastic
age_range_descriptionAll Life Stages
number_of_items1
styleProtection
included_componentsSeachem StressGuard 500ml
specific_uses_for_producthabitat
is_discontinued_by_manufacturerNo
product_dimensions6.6 x 2.4 x 2.3 inches; 1.15 Pounds
best_sellers_rank#6,682 in Pet Supplies ( See Top 100 in Pet Supplies ) #47 in Aquarium Water Treatments

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Customer reviews

4.84,045 ratings
  1. 5100%
  2. 40%
  3. 30%
  4. 20%
  5. 10%

Customers say

Customers find this aquarium water treatment to be a phenomenal product that works better than similar alternatives, particularly for healing torn fins and boosting immune systems.

★★★★★

Good product, bad delivery

JesseFebruary 1, 2026✓ Verified purchase

My oscar fish got pretty beat up by another tankmate (which I got rid of after this). I did a couple salt dips after noticing a white outline on the edge of its fins. Its an albino so I couldn't tell if it was due to regrowth or infection. Either way the salt couldn't hurt. But the majority of the recovery was just using this. Seems to have worked well, some slow regrowth going now. He should make a full recovery. The bottle did arrive broken and it did spill inside the box. The lid snapped off. I don't think that was necessarily the companies fault as much as it was Amazon's. It took like half an hour going through menus just to get assistance. Absolutely ridiculous. But other than that it seems to have worked. Will continue dosing until it grows it back entirely. You can see the difference from the first day to now. First picture was on monday and the second was saturday. Not bad considering. It looks like it will be awhile before hes full go though. You can see his fins and tail were more frayed initially, but now they seem to be coming more together. I am doing frequent water changes now, to help it heal faster. I just redose for the amount I take out. I had a bottle of paraguard on standby seeing as I just started this tank, but I really should've have the stressguard instead. Will likely keep a bottle of this on hand now as well. Read more

Review image 1Review image 2
★★★★★

One of the best water additives out there

deLariosOctober 17, 2022✓ Verified purchase

I have a 55 gallon with some questionable stocking.... see, about 7ish years ago, my mother bought me a mysterious fish that I would later identify as a tiger loach. I freaking love the dude. I really need 5 more of them so he can live out the rest of his days with his own kind and be happy, but I have never seen another of his specific kind (Syncrossus Helodes) ... Because of this, he's kind of a cranky guy (I don't blame him, i know it's my fault, I'm a monster, but dammit I've been trying to find him buddies ever since I was finally able to identify what kind of loach he is, which took me YEARS, so cut me some slack por favor) ANYWAYS sometimes when he's feeling particularly jerky he'll hunt my guppies... not relentlessly or anything (they're not living in fear), just a chomp on the tail to those who dare swim too close to his cavern (he does it to my giant 9ish year old pleco as well, to no effect, but i also catch those 2 sleeping together with the loach layed out all awkwardly on his side on top of the pleco...). This results in the *occasional* chunk of guppy tail fin missing... this stuff helps the healing process so much. I'll see improvement same day and new growth the next day. When I dose my tanks with this, the guppies will rush over to the bluish cloud, shimmying directly through it. If they could, I'm sure they would cheer. They love how it makes their slime coat extra slimey and coating (I assume, based on my interpretation of the sign language we've developed together over time) Read more

★★★★★

this saved my fish’s lives

RosieSeptember 2, 2024✓ Verified purchase

first of all, I do not usually leave reviews.. but I just wanted to put this out here in case anyone else finds himself in a similar situation and aren’t sure what to do. I have very large South American cichlids in an outdoor pond and naturally sometimes they fight. Anytime I see anyone with any injuries I always dose the pond with this bc it’s safe for the other fish and the plants in there. It’s essentially harmless to use and can pretty much only help. I’ve used this probably dozen times for small injuries and never had any problems. This particular time was a true test of its efficacy. Two of my adult cichlids had the worst wounds I’ve seen in any of my tanks. A blood parrot was missing like a third of their jaw/face from locking jaws with someone and getting their face bitten, and a different fish had what looked like a stab mark (??) that was like almost a full inch long with some weird opaque white stuff coming out of it 😭 These 2 fish don’t bother each other at all so it may have been a coincidence idk but it was such a nightmare and I did not think either of them would come back from their wounds. I considered euthanizing them, but honestly, I didn’t have any way to actually euthanize fish that size.. so I ordered a couple bottles of this overnight and prayed for the best. It says it’s safe to double the dose so I did and within three days, the fishes face grew back almost perfectly and the other fish with the stab wound already had a visible closed scar. I was so impressed (and thrilled!!) It says it has colloids that bind to exposed proteins in wounds, and after my personal experience and consulting some experts online, I truly believe this product does what it says, and is worth every penny. Read more

★★★★★

One of my male platys is small and easily stressed. His tank mates don't exactly harass him ...

CynsterMay 23, 2018✓ Verified purchase

I have been impressed with all of the Seachem products. This one has saved my sickly platy twice. One of my male platys is small and easily stressed. His tank mates don't exactly harass him but he is low man on the totem pole. A while ago he was acting really poorly. The water chemistry was fine as were all of the other fish. I used StressGuard and he rallied. It happened again recently. Clamped fins, cloudy scales, just not right. Everyone else was fine. Once again the StressGuard saved the day and now he is looking good and happy. I have also had great success with using StressGuard when adding new fish. The fish seem to adjust quickly and happily. Female platys often have trouble after giving birth. But with StressGuard my girls are doing great! The fry are also thriving. I will always have this product on hand. It's a lifesaver. Read more

★★★★★

Worth it.

CourtneyNovember 25, 2025✓ Verified purchase

I have tetras, plecos and snails and no issues when using this. I do believe it helped promote healing after I had a little fin rot run its course. I use this after water changes (stress) or when I need some extra juice to amp up healing. It’s affordable and very easy to follow the directions. Read more

★★★★★

Perfect

Steven Patske JrMarch 7, 2026✓ Verified purchase

Works good! Read more

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