Minerals
DOWN MAX
Lowers alum (acid sulphate), detoxifies alum and heavy metals
View detailsProbiotics for pond bottom treatment, toxic NH3, NO2, H2S and slimy pond liners
Toxic gases produced from uneaten feed, shrimp faeces and bottom sludge are a silent cause of slow growth, black gill and disease susceptibility. Probiotics treat the waste at its source; yucca and zeolite lower toxic gases quickly in urgent situations.
Typical signs
- NH₃ above 0.1 mg/L or NO₂ above 1 mg/L (above 0.5 mg/L at low salinity)
- Black bottom sludge smelling of rotten eggs
- Slimy liner, water with a lot of foam and scum
- Shrimp eating less, gathering at the pond edge, black gills
Treatment steps
Measure pH and DO (high pH makes NH₃ more toxic, low pH makes H₂S more toxic); cut feed by 20–30% for 2–3 days and increase aeration
Absorb toxic gases quickly with yucca or zeolite
Apply bottom probiotics every 2–5 days depending on the stage
Siphon lined ponds and remove liner slime periodically
Exact rates follow each product label and the condition of the pond. Contact thuocthuysannoben@gmail.com or WhatsApp +84 934 246 420 for technical advice.
Matching Noben products
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Minerals
MARIMIX
Specialist for aluminium and iron alum, detoxifies alum and pond water
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Probiotics & pond care
BIO EDTA
Removes heavy metals, pesticides, chemicals, bottom alum and other residues at the pond bottom
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Probiotics & pond care
EDTA 99
Removes heavy metals, pesticides, chemicals, bottom alum and other residues at the pond bottom
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Probiotics & pond care
NO TOXIN
Neutralises chemicals, heavy metals, pesticides, bottom alum and other residues in the pond water
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Probiotics & pond care
AMYLAC
Specialist for removing slime from pond liners and water in lined and high-density ponds
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Probiotics & pond care
NB- BIOPOND
Pond-bottom specialist: breaks down toxic gases and removes them from the pond
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Probiotics & pond care
CLEAR 12H
Helps decompose organic sludge, uneaten feed, dead algae and shrimp faeces accumulated at the pond bottom
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Probiotics & pond care
BZT
Helps decompose organic sludge, uneaten feed, dead algae and shrimp faeces accumulated at the pond bottom
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Probiotics & pond care
ROVA OTIC
Helps decompose organic sludge, uneaten feed, dead algae and shrimp faeces accumulated at the pond bottom
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Probiotics & pond care
AQUA BAC
Helps decompose organic sludge, uneaten feed, dead algae and shrimp faeces accumulated at the pond bottom
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Probiotics & pond care
AQUA BZ
Helps decompose organic sludge, uneaten feed, dead algae and shrimp faeces accumulated at the pond bottom
View detailsIn-depth guides
Shrimp farming knowledge
How to treat toxic NH3, NO2 and H2S in shrimp ponds effectively
Toxic NH3, NO2 and H2S silently harm shrimp. Safe thresholds, warning signs and treatment with probiotics, yucca and zeolite for earthen and lined ponds.
High-density whiteleg shrimp farming in lined ponds for consistent yields
Lined ponds control the bottom and disease better than earthen ponds. Tips on pond design, stocking density, siphoning, liner slime, minerals and oxygen.
How to measure and read shrimp pond water parameters: pH, alkalinity, oxygen, NH3, NO2, H2S, transparency
Measure shrimp pond water at the right time and place, then read pH, alkalinity, DO, NH3, NO2, H2S and transparency against QCVN 02-19:2014 and keep a log.
NH3 and NO2 in lined ponds: understanding nitrification, pH, temperature and salinity for control
The same ammonia level becomes many times more toxic as NH3 at high pH and temperature. Nitrification, an NH3-by-pH table and why NO2 is worse at low salinity.
Shrimp farming in the rainy season: preventing pH shock, alkalinity drops and algae crashes, and what to do before, during and after heavy rain
Rainy season shrimp ponds risk pH shock, alkalinity and salinity drops, algae crashes and low bottom oxygen. How to manage ponds before, during and after heavy rain.
Benthic algae, lab-lab and slimy algae in shrimp ponds: causes, harm and how to deal with them
Lab-lab, benthic and slimy algae grow when shrimp pond water is too clear. Causes, toxic gas from dying mats, prevention by colouring water, safe treatment.
Frequently asked questions
How often should bottom probiotics be applied?
For shrimp under 30 days, about once every 5–7 days; 31–60 days, about every 3–5 days; over 60 days, about once every 2–3 days.
What is the difference between yucca and zeolite?
Yucca helps reduce NH₃ in the water quickly; zeolite adsorbs ammonium well in fresh and low-salinity water but poorly in brackish or saline water, and mainly helps settle suspended matter on the bottom. The two can be used together; nitrite needs probiotics, water exchange and adequate salinity and minerals instead.
Other pond problems
- White faeces, hepatopancreas, gut Shrimp white feces disease, hepatopancreas and gut problems: treatment and prevention See treatment steps and 34 products
- Black spot, black gill, fouling Shrimp black gill, black spot and fouling disease: treatment and prevention See treatment steps and 4 products
- Soft shell, bent body, slow growth Shrimp minerals for soft shell, bent body, muscle necrosis and weight gain See treatment steps and 39 products
- Algae & water colour Water colour building and algae control products for shrimp ponds See treatment steps and 26 products
- Low oxygen, shock, stress Emergency oxygen, anti-shock and stress relief for shrimp See treatment steps and 23 products
- Disinfection & snail control Water disinfection, snail control and parasite treatment for shrimp ponds See treatment steps and 12 products
- Digestion, immunity, vitamins Digestive enzymes, vitamins, immunity and growth boosters for shrimp See treatment steps and 37 products
Distribute these products in your market
Distributors, importers and brand owners: tell us what you need and we will reply with prices, specifications and documents within one working day.
+84 934 246 420WhatsApp / Zalo on the same number, or email thuocthuysannoben@gmail.com