Just sharing......
Percent Active Ingredient
Many antibiotics commonly used for ornamental fish are sold by different companies; therefore, the percent of active ingredient will vary from product to product. This means that you may not have 100% of pure antibiotic required for disease control. You need to ask your supplier to provide you with the actual percentage of antibiotic that is active in the product you have purchased and calculate your dosage accordingly. For example, if your product contains less than 100% of active ingredient, your dosage needs to be increased to bring the level up to the equivalent 100% active ingredient. (See Equation 1) If you are unsure how to do this calculation, call your local fish health specialist.
https://edis.ifas.ufl.edu/fa084
Grasshopper
Francis
Myself I would not double dose furan 2. I'd be too afraid to knock them down/poison them. If it comes in at 85% just dose an extra 15%. Lets hope it 100% Furan 2.
I agree with you Mervin. Furan is not like Metro. You can't hurt a fish with Metro but you can with most other antibiotics. I've always used it according to label directions with good results but I wouldn't object to going up another 15%. I'd be uncomfortable double dosing.
Mama Bear
Just sharing.....Pure Nitrofurazone
Oral(food)DOSE…..1.12 grams/lb food per day for 10 days.
Bath Dose (water change recommended prior to each dosing)…..189-756 mg per 10 gallons for 1 hour, repeat daily for 10 days or 378 mg per 10 gallons for 6-12 hours, repeat daily for 10 days.
By Dr. P.E. P.E.Yanong (in fish health management and aquatic animal health @ University of Florida
Grasshopper
Francis