Maracyn-Two
A broad-spectrum antibiotic for internal or external gram-negative bacterial infections.
Effective treatment for fin and tail rot, popeye, gill disease, dropsy, bleeding or red streaks, secondary and internal infections. Also helps treat sick fish that will not eat.
Active ingredient: Minocycline.
For freshwater, use 2 packets per 10 gallons first day. For saltwater, use 1 packet per 10 gallons first day.
General Information for Maracyn-Two (Marine)
For Infections of: Fin and Tail Rot, Popeye, Gill Disease, Dropsy (swollen body, protruding scales), Septicemia (bleeding or red streaks on body), secondary and internal infections.
Maracyn-Two 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 Maracyn-Two in the fish fluids rises to a therapeutic level and 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.
Maracyn-Two is non-toxic to invertebrates. Cloudiness may occur while using Maracyn-Two. Once the full course of treatment is completed, 25% water change is recommended. This, along with the addition of fresh activated carbon, clears any remaining cloudiness.
Special Notes on Diagnosis
Diagnosis of bacterial infections and parasitic infestations in salt and freshwater fish is very difficult, even for the most advanced aquarist.
Effects on Biological Filtration
Nitrobacter and Nitrosomonas are widely recognized as the primary beneficial bacteria present in the biological filtration system of every aquarium. Some drug, which treat fish disease are harmful to these "good" bacteria. When the biological filter is upset, there is a build-up of ammonia and nitrite concentrations, resulting in fish distress and sometimes death. Mardel products have been tested with known strains of these bacteria with no adverse effects noted. When used as directed, they do not interfere with the biological filter.
NOTE: In heavily stocked aquariums, it is important to actively monitor ammonia and nitrite levels because during treatment, fish may excrete more waste materials. After treatment, it is always beneficial to add a boost to the biological filter with the use of a bacterial additive.
Source: Foster & Smith, Inc.
