This site list melafix from two different venders, mars and pond care. big difference in priceing. are they the same?

I've used several different brand types of melafix and found that they work just the same.

Is it safe to use post-expiration? In other words does it turn toxic to fish or simply starts to lose the effectiveness?

I would think if this is not very much over date, like 6months or so, it would be fine. If it is still sealed, it will be like new or almost. If it is older, it probably, hate to say as this, but I would think it will be okay to use, and just be weaker or maybe not. If you are in doubt, I would buy a new one to be certain. In the past, they never put dates on anything, and now a days they do and the things were used and were okay. Best answers I can give you. Good luck with your issues.

I guess my butterfly goldfish has fin rot. How should I treat it? It is in a pond with other healthy fish.

If the other fish are healthy. Then you should remove it in to a isolation tank. Be sure to use the pond water when you fill it. There are instructional videos on YouTube that will show you how.

How is this different from regular strength? They both have 5% concentration in a 64 oz bottle.

My advice is to please ask a professional breeder for direction. Off the self purchases is "gambling" to me! Best wishes to you and the Fish :)

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API Melafix Freshwater Fish Bacterial Infection Remedy, 1.87 Litre Bottle

Product ID: 67654764

Details

Brand
API
Item form
Liquid
Item weight
64 Ounces
Liquid volume
64 Fluid
Unit count
1870.0

⏳Rapid action within days

🌿Natural tea tree botanical extract

🧴1.87 Litre liquid volume

743.94 DT

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Description

🌿 Heal your fish, protect your aquatic world — naturally and fast!

FAST ACTING FORMULA - Visible improvements in fish vitality and wound repair within 2-3 days to minimize downtime.
TRUSTED BY THOUSANDS - Over 11,000 4.5-star reviews prove its effectiveness and reliability for serious aquarium enthusiasts.
GENEROUS 1 87 L SUPPLY - Ample volume ensures prolonged treatment cycles and preventive care without frequent repurchasing.
POWERFUL NATURAL HEALING - Harnesses botanical tea tree extract to rapidly heal bacterial infections and damaged fins.
PREVENTS DISEASE OUTBREAKS - Ideal for newly introduced fish, reducing infection risks and protecting your entire freshwater ecosystem.

API Melafix is a 1.87-litre liquid remedy formulated with natural tea tree extract to treat bacterial infections, damaged fins, ulcers, and open wounds in freshwater fish. Designed for both treatment and prevention, it promotes rapid healing and reduces disease risk in new fish introductions. Trusted by thousands of aquarium owners, it delivers visible results within days, ensuring a healthier, more vibrant aquatic environment.

Specifications

ASIN	B00026041M
Best Sellers Rank	1,258 in Pet Supplies ( See Top 100 in Pet Supplies ) 2 in Prescription Aquatic Animal Medications
Brand Name	API
Customer Reviews	4.5 4.5 out of 5 stars (11,347)
Global Trade Identification Number	00317163160114
Item Form	Liquid
Item Weight	64 Ounces
Liquid Volume	64 Fluid Ounces
Manufacturer	API
Manufacturer Part Number	11P
Model Number	11P
Number of Items	1
Pet Type	Fish
Target Species	Fish
UPC	317163160114 317163416112
Unit Count	1870.0 millilitre

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743.94 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

Khalid Z.

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1 week ago

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