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🛡️ Protect your aquatic world with science-backed care!
Seachem ParaGuard is a 10% aldehyde-based liquid treatment designed to safely and effectively eliminate parasites, fungal, bacterial, and viral infections in freshwater and marine fish. It is non-toxic to fish and aquarium filters, maintains pH stability, and comes in a convenient 3-pack of 500ml bottles for extended use. Ideal for hospital and quarantine tanks, ParaGuard is a trusted solution for maintaining a healthy aquatic environment without harming plants or fish.

| ASIN | B002DWTIU6 |
| ASIN | B002DWTIU6 |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | #10,748 in Pet Supplies ( See Top 100 in Pet Supplies ) #85 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,994) |
| Date First Available | June 21, 2011 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00000116060301 |
| Included Components | Seachem ParaGuard 500ml Bottles (3 Pack) |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Type Name | Seachem ParaGuard 500ml Bottles (3 Pack) |
| Item Weight | 454 Grams |
| Item model number | 603 |
| Liquid Volume | 16.9 Fluid Ounces |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer Part Number | 603 |
| Model Number | 603 |
| Pet Type | Fish |
| Product Dimensions | 2.44 x 2.44 x 7.62 inches; 1 Pounds |
| Target Species | Fish |
| UPC | 000116060301 |
| Unit Count | 16.9 Fluid Ounces |
| Warranty Description | Warranty |
J**�
GREAT PRODUCT FOR GOLDFISH // UPDATE
I have a 17 year old goldfish and he's never been sick at all. I've always only used a top quality water conditioner and he's alone. A few weeks ago I noticed he was not himself...not eating and staying in the corner all the time with little perky swimming. I keep him in a very large, old fashioned bathtub with a big fountain for water // oxygen. I also notice a type of white stuff on him. First it was very pale white then became almost like a white salt look on him. I went into a major panic and bought this product. (along with a few other's from Amazon for treating ich and other diseases).... I moved him into a small tank with this medicine and completely cleaned out his pond and fountain. I added this to his fresh new pond/tub, along with water conditioner called Stress Coat (which I've used for all these years with no problems at all)......I have a soft / large net to gently pick him up to move him and he was so quiet. He's usually a perky one....I got the net here on Amazon also. He's at least 9 inches and looks 'fat' to me so I worried it could be bloating too. I put him back into his fresh tank / tub and waited a day before trying to feed to reduce anymore stress. YAY, he is eating again and swimming. He does enjoy my company though, lol.....I just love him. He's bright orange and I don't see any signs of disease again, yet. I did notice at times now he'll spit out his fish food and go for tiny pieces of flake food on the bottom. That worries me a little bit so I've ordered new food for him too. I was very pleased with this product. Seemed safe and complete. It seems to have saved him and I am so grateful. I wish I knew what he'd enjoy eating so I can keep him happy and healthy. I hope he'll be around for a long time. THANK YOU for this product. I used the Aquarium salt too but I think using this product primarily, did the trick as did cleaning out his tank // tub area completely too. It arrived on time. Amazon has saved my day more than once!! Any suggestions would be welcome to keep my fish glowing and going. Do I use it during EACH CHANGE? TIA~ ..............UPDATE:::: 12/18/2013 - Ohh no - My fish has that stuff on him again and he's not acting right. I bought him blood worms and new fish food of pellets (I have always only fed flake food) and he won't eat any of it now. He's not his perky self. He knows when I come in and swims over to me...is breaking my heart. I took pics of him but not sure if anyone can view them that knows goldfish. He seems 'off'....and a tiny // slight tilt. He does not fight me when I reach down to pass my hand over his side to remove those white thingys (like salt)). I don't like touching him as I may injure him more. IS THERE ANYONE TO ASSIST ME IN HERE? He has never been sick 1 single day in his life until we had to move to this horrid place. : (( - Should I attempt to move him outside as I have a big pond thingy out there for him but worry about wild animals then. I also bought Pimafix from Amazon but not sure if I can add it to his water too. It treats fungal infections. I just don't know the answer and don't want to make things more toxic. Thank you. >>>>>>>>>>>>>UPDATE Dec. 28, 2013 - ALL IS GOOD : ))) Ich is gone again and I keep re treating. This is a great product // Thank you and Elvee thanks you. You MUST re treat as this disease has cycles per my Marine Vet. ********UPDATE January 9, 2014 - This did NOT cure the Ich - per my mobile fish vet today she told me to buy this from Amazon, which I did:::: Mardel Quick-Cure Aquarium Treatment, 4-Ounce ..............I did not know they "sedate" a goldfish to examine them.... I could not watch.. my vet is great and I purchased the new Ich medicine above, more oxygen piping, etc. My fish vet sedates my Elvee, in a separate bucket and it is Ich. Also my water was not right so I had to buy a API water test kit here on Amazon. You can never oxygenate too much. She said my Elvee is happy and spoiled tho... : )).......
M**4
Seems to have worked eliminating fungus
Product seems to have cleared cloudy ear fungus.
S**D
Used successfully to treat scutariella
I used Seachem Paraguard to treat scutariella on yellow shrimp in my 10 gallon. I know that this product has not been tested (per Seachem website) with invertebrates but I had tremendous success! Background on the tank: 10 gallon, inhabited for six months, 12 espei rasbora, 7 asian moth catfish, 1 ghost shrimp, 5 amano shrimp and 25-30 yellow neocaridina shrimp of various ages and stages (juveniles, adults, berried females and some teensy newborns). I removed the carbon from the filter and dosed everyday for two weeks. Water changes stayed current (1-2 x per week of 15-20%). Not all of the yellow shrimp had scutariella, I counted roughly 6 but those six visibly had signs on their rostrums and heads. Within the first couple of days of treatment, I saw immediate improvement. After a week, I only had three shrimps that showed scutariella and I pulled those out and did a salt dip (1 tb. salt to 1 c. tank water - soak for 30-60 seconds, the parasite falls off immediately). I continued to medicate the tank for a few more days to ensure that I did not see anymore signs of illness. The combination of Paraguard and salt dips worked wonderfully! I have a heavily planted tank and it would be difficult to use the salt dip for everyone. I did not lose any shrimp or fish and I see many juveniles and newborns) and nobody showed any signs of stress. I have over half of a bottle left which I will keep on hand for other issues that may arise. A wonderful product! It is a blue/green color but does not turn the tank water any colors and is quickly dispersed. Also, if you are treating shrimp for scutellaria, be sure to remove molts as the parasite stays in the molt. The medication is only active for 24 hours, so I suggest doing water changes before adding medication to ensure that it remains in the water for therapeutic purposes. I kept an easy routine of dosing in the morning, on water change days I changed the water and then added medication.
K**R
Love this stuff!
Fixes everything. Big Angel, Gown Golden Ram, Misc Corries, and a rainbow blah, which is annoying to everyone else, and a big bristlenose pleco in a 55. Tank has been running forever with no issues. There's not enough fish to have to do more than change one filter of 2 every two weeks and a 1/4 water change every 3 to 4 weeks. I add this every two weeks for two days without filters for the first day. Fish are healthy and happy.
J**D
Good preventive treatment
Paraguard is awesome. It treats many external fish problems, so you don't need an expert diagnosis to help your sick fish. It doesn't treat everything, so do some research on the Seachem website. This cured my fish who were showing symptoms of gill flukes. They probably had some other parasites/diseases, too, but they were fine after a 14-day treatment with Paraguard. Just be sure to remove chemical filtration during treatment. When I get new fish now, I quarantine them and do a preventive 14-day Paraguard treatment. I can also vouch for its safety regarding inverts and sensitive fish if dosed into the water. I've treated the tank volume with cory cats, otos, snails, and cherry/amano shrimp with no issues. Don't ever put inverts in a concentrated bath, though. I've also never experienced any staining of silicon or other items in the tank. Very useful medication.
M**L
Amazing medicine to always have on hand for sick fish
D**A
Works as advertised; it eradicated the ich infestation, although perhaps not as quickly as some of the stronger medications. It also did not kill my nerite and assasin snails, although a couple of the nerites do show some shell damage. It also did not stain the silicone in my very expensive ADA aquariums. All in all, I will continue to use ParaGuard if and when necessary.
R**J
Great product!!
R**S
Good product. One of the few products that can be safely used on invertebrates. I used this product for a whole month by dosing my tank daily. I lost just one Cardinal Tetra and a little harm to my aquatic plants. But all good. Would go for it again.
A**E
Perfect! My betta has gotten fin rot and just over a week of dosing this daily he was cured. His fins are now regrowing as I use stressgaurd to help with healing and to help during medicine dosing. Worked great!
Trustpilot
5 days ago
3 weeks ago