About Fritz Maracyn® Two
Maracyn® Two powder is a broad-spectrum antibiotic developed for use in aquariums which has been shown to be effective against a number of pathogenic bacteria associated with ornamental fish disease. Due to its unique properties, it is absorbed by the fish through the skin. During the prescribed treatment, the concentration of the active ingredient in the fish fluids rises to a therapeutic level and is available to fight systemic infections susceptible to its action. Maracyn® Two is primarily effective against gram-negative pathogenic organisms. Internal diseases are more difficult to detect than external ones as early detection is almost impossible. It is also potentially effective against some gram-positive and fungal infections, making it our most broad-spectrum treatment, and a great first choice of medication when the cause of disease is unknown.
Provides relief from bacterial infections such as fin and tail rot, popeye, septicemia, dropsy, internal infections, and other secondary infections, such as wounds from injuries or parasites. Symptoms of possible bacterial infection can include clamped fins, general listlessness, degradation of tissue on fins, suppressed appetite or other unusual behavior can be caused by internal infections. All suspected bacterial infections should be treated immediately. Consult a veterinarian or fish expert for assistance in diagnosis of disease causing organisms and treatment options.
Active ingredient: Minocycline
Directions & Dosage
Add the dose per 10 gallons of water and repeat every 24 hours for 5 days. Please note that Day One requires a double dose. Repeat this 5 day treatment only once if needed
Day 1: Add the contents of TWO packets per 10 gallons of water
Day 2: Add one packet per 10 gallons of water
Day 3: Add one packet per 10 gallons of water
Day 4: Add one packet per 10 gallons of water
Day 5: Add one packet per 10 gallons of water
Day 6: Perform a 25% water change. Repeat this five-day treatment if symptoms improve, but have not completely disappeared. If no improvement has occurred, try our Maracyn® and/or Maracyn® Oxy treatments.
- For best results, use Maracyn® Two in a quarantine tank
- Remove carbon during treatment, maintain adequate water flow or aeration
- Maracyn® Two may cause excessive foam production in protein skimmers or tanks with airstones. Stop use of skimmer during treatment if excessive foaming is a concern.
- UV Sterilizer can be used during treatment
- Cloudiness may occur during treatment; this is normal and will clear up on its own after treatment
- Always complete a full course of treatment, even if symptoms improve or disappear before the fifth dose
- No contraindications: can be used with all of our other products and meds
- Safe for use with invertebrates
- Some more sensitive plant species may display yellowing, but this condition generally improves after the treatment; remove any plants if concerned
- Do not perform water changes during the course of treatment. Maracyn® Two may inhibit nitrifying bacteria. If ammonia or nitrite is a concern, detoxify during treatment with Fritz A.C.C.R. or Fritz Complete
- Overdosed? Perform a large water change if distress is observed
Note: FOR AQUARIUM USE ONLY. Consult a veterinarian or fish expert for assistance in diagnosis of disease causing organisms and treatment options. If you are unsure of the specific infection, Maracyn® Two may be used concurrently with Coppersafe®, Maracyn® or Maracyn® Oxy.
Treating an aquarium less than 10 gallons? Check our FAQ for some quick dilution recipes or watch our instructional video below.
Sizes
| Size | Treats | Item Number |
|---|---|---|
| 10 count | varies | 47001 |
| 20 count | varies | 47002 |
| 100 g bulk jar | 1,000 gal (3,785 L) | 47003 |
| 400 g bulk jar | varies | 47051 |
FAQs
FAQs
See below for frequently asked questions regarding Fritz Maracyn® Two.
- I’m currently treating my Oranda with Maracyn Two for a very stubborn case of tail rot. She has developed some fungal spots on her tail - can I expect these to clear with the Maracyn Two treatment?
- I think my fish has a bacterial infection, how do I know which product, Maracyn® or Maracyn® Two, to use?
- Is Fritz Maracyn Two the same as Mardel Maracyn Two?
- I have a 1-gallon betta bowl that I am medicating; if each packet treats 10 gallons (2 packets per 10 gallons for the initial dose of Maracyn® 2) how do I treat my betta?
- Can I use Mardel Maracyn and Pimafix simultaneously?
- How do you recommend using/dosing your beneficial bacteria during a 5-day Maracyn/Maracyn Two regimen?
- I’ve used Maracyn®/Maracyn® Two twice now for two full treatments and it does not appear to be working, can I treat a third time?
- Can I use Maracyn® and Maracyn® 2 simultaneously?
- Is it safe to use in an aquarium that houses ornamental freshwater shrimp? The small variety, cherry shrimp, blue velvet, carbon… etc.. I am having an outbreak of cyanobacteria.
- My box was missing the instruction insert, is it available online?
- How do I use dry medications in tanks smaller than 10 gallons?
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