CrystalClear KnockOut Plus is an all natural, fish treatment that eliminates PLUS prevents external single-celled parasites or fungal infections. KnockOut Plus works extremely well with pond fish species such as koi and goldfish and unlike most fish treatments, there is no need to remove your filters before treatment. Furthermore, when used routinely, KnockOut Plus works as a strong preventative treatment. Use anytime new fish are added, during pond clean-outs, during spring start-up or any time fish are stressed. KnockOut Plus is a broad spectrum treatment for a variety of parasites including ichthyophthirius (Ick), sporozoan parasite, dinoflagellate infections as well as fungi such as saprolegnia, achlya, leptomitus and pythium. May be used with most invertebrates including snails.
All natural fish treatment
Remedies ick, fungal infections and single-celled parasites
All natural, safe for fish, plants and the pond's ecosystem
Prevents future infections
Dosage Rate: Use 1 fl. oz. of KnockOut Plus per 60 gal.
128 fl. oz./1 gal bottle treats up to 7,680 gal.
Standard Application Rate: Shake well before using. Upon discovery of infection, apply daily for 7 days. When there are no visible signs of infection, it is recommended to continue treatment daily for an additional 3 days to ensure infection will not return. Disperse over the majority of the surface area of the pond.
Persistent Problem Application Rate: Shake well before using. For infections that last more than 7 days after standard application, treat twice per day. Apply once in the morning and once in the evening. Do not apply as a bath application. KnockOut Plus works best as an in-pond additive.
Preventative Application Rate: Treat daily for 7 days anytime new fish are added, during pond clean-outs, during spring start-up or any time fish are stressed
Natural or Organic:
Number of Gallons Treated:
Manufacturer Part Number
CrystalClear KnockOut Plus, 1 gal. is rated
5.0 out of
Rated 5 out of
Reviewer J from
Amazing stuffAmazing stuff. I had a few goldfish with progressively worse cases of ich in a 125 gallon water feature. I had been treating them with Pimafix and Melafix (which are great products but just weren't cutting it for this particular infection) and Knock Out PLUS took care of the problem in a few days (but just like human medicine, you should dose for the whole cycle indicated on the bottle). I'd absolutely buy this product again and have already recommended it to friends.
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