My poor betta fish was good as dead, but Maracyn 2 knocked out the bacterial infection and she's on the mend.
About Mardel Maracyn® Two
Provides relief from bacterial infections such as fin and tail rot, popeye and dropsy in fresh and saltwater aquariums.
Mardel Maracyn® Two powder is a broad-spectrum antibiotic (minocycline) developed for use in aquariums. Due to its unique properties, it is absorbed by the fish through the skin. During the prescribed treatment, the concentration of minocycline in the fish fluids rises to a therapeutic level and is available to fight systemic infections susceptible to its action. It is primarily effective against gram-negative pathogenic organisms. Internal diseases are more difficult to detect than external ones and early detection is almost impossible. Symptoms of clamped fins, general listlessness, not eating or other unusual behavior can be caused by internal infections. All suspected bacterial infections should be treated immediately.
Mardel Maracyn® Two is non-toxic to invertebrates.
Directions & Dosage
First day: Add the contents of two packets per 10 gallons of water.
Second through fifth day: Add one packet per 10 gallons of water.
Repeat this five-day treatment once if needed.
Cloudiness may occur while using Maracyn® Two.
Important: Treat for five days even if visible signs disappear. May be used concurrently with Coppersafe®, Maracyn® or Maracyn® Oxy. Maracyn® Two will not harm invertebrates.
Maracyn® Two may cause excessive foam production in protein skimmers. Stop use of skimmer during treatment if excessive foaming is a concern.
Note: Consult a veterinarian or fish expert for assistance in diagnosis of disease causing organisms and treatment options.
Treating an aquarium less than 10 gallons? Watch for instructions!
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Customer Reviews
Overall rating: 4.9 / 5 from 44 reviews.
Worked as needed
Worked well for Fin several times over the years.
Fast friendly service. Highly recommend.
Maracyn2 is great. I use it for my quarantine routine. Be ware that it does crash your cycle.
Great product and fast shipping!
It worked great!
As always KG Tropicals delivered the product quickly. Love John and Lisa!
I'm so grateful for you having the product that I needed...also your YouTube videos are very helpful as well❤️🤗🙏
Haven't had to use it but like John said on your channel, best to be prepared. Thanks.
3 stars to be neutral, because I just used it and don't know how well it works.
Excellent experience and now using Ups the shipping experience became so much better!
As described.
Quick shipping. Product arrived intact. Good service.
Treating my fish for flossy fins. Delivery was spot on, thanks so much!
A great product and one too always keep on hand.
The only thing that has worked for our Betta's pop eye.
Helped with my fish’s bacterial infection (probably columnaris?). Didn’t bother my bamboo shrimp or assassin snails.
Great customer service.
It came on time and didn't have issues with it.
I got two orders of it on hand in case of emergency happy with the seller and love their channel
Worked for my betta's popeye. Thanks!
Helped cure epylisits (butchered that spelling lol) on my Molly used in conjunction with Maracyn 1. Great to have on hand for unexpected illness
Shipping was fast and medication arrived quickly.
It helped save both a Corydora with severe fin rot, and a Honey Gourami with Dropsy. Plus, it's almost impossible to find. Thank you for keeping it in stock.
I needed a gram negative antibiotic as the active ingredient in a medicated food formula that was given to me, to treat epistylis. Ich X alone was not successful, but with this medicated food, the fish recovered!
Very fast shipping and a nice personal thank you note.
Shipped promptly and arrived in good condition
Very good medication has worked well for me with my community tank of varied fishes and shows diseases it fixes on box easy to use.
Great stuff! Helped my betta get better from fin rot
Quick service. Able to source hard to find product.
Good product but took far too long to get it. Maybe try a different type of shipping?
Final item to complete my "first aid kit" for my aquariums.
We had an unidentifiable white web type growth which rapidly took over the sand substrate. After adding Maracyn Two, breaking up the sand and distributing the treatment throughout, it got rid of the unknown substance and cleaned the sand as well. We will be performing this routine every 6 to 8 weeks as a means of maintenance.
On point
Exactly as expected
Good to have this on hand in case your fish-friend gets sick!
The Maracyn two I ordered from you both helped save my sick fish tank.
Excellent customer service!
I haven't needed to use it yet. I just bought it in case my fish get sick.