Alkalinity of water
Water alkalinity is Important for Vannamei Shrimp Farming.
- How much Bicarbonate (Hco3 or hydrogen carbonate ) percentage in water is called Alkalinity.
- If Alkalinity is 200 the pH will be stable.
- If Alkalinity is 100 or less than 100 the pH will be down.
- If Alkalinity is high, Feed intake will be problem/uneaten.
- If pH is down, Alkalinity low, Shrimp will be floating, Moulting problem
- 150 Alkalinity is okay
For Example Alkalinity is 200
- Good - 120 to 200 or 250
- Bad - above 250
Alkalinity is Low
If 150 Alkalinity is Low?, So Increasing alkalinity is as easy as adding more carbonates to the water. The safest, most cost-effective, and popular product is sodium bicarbonate (aka baking soda, or bicarb).
Sodium bicarb is great for raising alkalinity and also slightly raises the pH of the water.
Dosage - Apply Soda 8kg + carbonate 15kg apply at Evening/night
Note - Sodium bicarbonate NaHCO3 (Baking Soda), Sodium carbonate Na2CO2 (Washing soda).
Alkalinity is High
- If 150 Alkalinity is High?, So use gypsum (calcium sulfate)
Required Water Parameters
Required Water Parameters
pH - 8.3
TAN (Bottle 1 and 2 = 8 drops) = 0.25
Nitrite NO2 -( 5 drops) = 0.25
Nitrate NO3 - 5 ppm
Alkalinity
Salanity - 2.2 ppt
Maintain good Alkalinity
- Dolamide or ClO3
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EDTA
EDTA is a chemical used to improve water quality by reducing heavy metal concentrations.
- If Hardness is high moulting process break down or stop
- Shell will be tight.
- End of the day will be death of Shrimp
- 19*25 = 475 is Total Hardness.
- Hardness = If Salinity is 2 multiplying by 250 approximately 500
- Example 2*250= 500
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White Feces Syndrome ( WFS)
1. Vibrio loads
2. High density
4. Water pH and Salinity
5. High protein heat
6. Over Feeding
7. EHP
1. Solution for Vibrio loads
- Exchange water upto 5 inch or 6 inch or 1/2 feet or 1 feet ( as per stocked water level)
- Use vibrio medicine (ie Elixir, triple salt, Bkc, etc)
- After that 6 or 7 hours load the water
- We cann't stop permanently, but can control it vibrio loads
Reddish color, don't moutling , long for moulting periods start mortality
Herbal Sanitizer
- Neem Juice + Turmeric
Preparation
- Boil the neem leaf
- Grinder the Turmeric
- Collect the boil neem leaf water and Mix with Turmeric and apply the pond
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Solution for WFS
- Reduce Feeds
- Organic acid (Morning Meals)
- Gut probiotic (Afternoon Meals)
- 28% protin Feeds use because more protins Feeds are indigestible
- don't use Vitamin C on White feces periods
- Check water pH also if water pH is High reduce it upto the pH 7.9
- Afte that use vitamin C
Herbal Treatment for WFS
Banana and probiotic
Advantage
- Mineral deficiency problem resolve
- No Feed problem
- Vibrio Control
- Control White feces
Dosage
- Banana and gut probiotic
- Gut probiotic 10g per kg feed and Banana 100g /kg feed
Tips -1
Banana and Jaggery
One banana for per kg Feeds
Tips -2
Yogurt and Fenugreek Seed
Procedure
- Fenugreek seed soak for over night water Thereafter Grinder it
- Fenugreek seed 15g per kg
- Curd 15g per kg
Weekly 3 to 4 days
Tips - 3
Turmeric 10 - 20g per Kg
Garlic 10 - 20g per Kg
Note - Morning Meal
Tips - 4
Tips - 5
Tips -2
- Curd + yeast 10g per kg
Note - 3days fermentation required
- Fenugreek/ methi powder 10g per kg
use for 3 to 4 days.
Tips -2
D-white + Fitkari
Procedure
- Dust the Fitkari and mix with water for soluble after that mix with D - white and apply the Feed and mix it , Finally dry for 30 minutes
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Moulting
- Vibrio load
- Hardness
- High pH
- If high ph leads/create for high Ammonia
- Low DO
- If Low Do, Shrimps Start a fresh moulting and after that shrimp will be start a hole and in case had bad Bottom so, shrimp will be start die.
Solution for Fresh Moulting
- Water exchange
- Chek the pH (Down/Lower pH can't be moulting)
- EDTA (2 or 3 kg per acre) + Dolamite (1/2p or 1p Dolamite) + or may or mayn't be Soda 5kg apply at 12pm Noon and Night 8pm apply Mineral. for Example Soda mix -8kg, Magnesium chloride - 6kg, Calcium chloride -3kg. 4am at Morning potassium chloride 4 kg
Note - Don't use Raw mineral if have ABW 7 + or less, Try and avoid it
Next Day - BKC - 2L and apply night time - oxygen powder
Next Day - Zeolite + Gas powder
Next Day - probiotic (high Dosage)
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SALT or Nitrite (No2) Gas
- NACL or Sodium chloride
- Remove Nitrite gas Fastly
- Salt + PP (Potassium permanganate)
- High Sodium level
Solution for Nitrite Gas
Dosage
- Salt -25kg
- PP 300g
- Apply at day time
or
Salt 15 to 20 kg Apply at day time for release Nitrite Gas
Note - If High blooms use for night time 10 to 15 kg per acres
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Running mortality syndrome (RMS)
- Bad Bottom conditons ( ie After Moulting stage shrimp start a hole if have a bad bottom so, shrimp will be dead
- Bad water conditions
- Antennae cutting
- High No2
- Vibrio loads
- Floating dead shrimp
- Low DO
- High Blooms
- High Stocking density
- Control pH / Lower pH
- Feeds Shortage
- Dark yellow color of water
- Probiotic and Mineral shortage maybe
Solution for RMS
- RMS CARE PVS Company
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Liver transition
- It'll be start Doc 20 to 35
- control water parameter
- don't upload too much water
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Turbidity or Yellow water
- Sometimes start RMS 7 or 8 grams
- low pH
- low Do
- low plankton density
- RMS start, Mainly Low DO due start for RMS
- A lot gas creations
- Stop Areations Day time
Solution for Turbidity or Yellow water
- Magnesium sulphate + Dolamite
- Soak overnight for Magnesium sulphate, Apply at Morning time Dolamite 10kg Mix with Magnesium sulphate
or
- Powder zeolite + Dolamite + Sand
Regular for 2 days
or
- TURBI Care (PVS company) + Dolamite+ sand , it's best results
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Rainy
- More minerals
- Add some salt water / raw salt..etc
- Potassium chloride and Magnesium chloride give us more iron
- More probiotic
- More Zeolite + Gas powder
- Reduce Feeds
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How to control Microcystis / Blue Green Algae in Aquaculture?
- Main reason for Cyanobacteria
Phytoplankton and Algae access to grow Reason
1. over fertilization
2. over feeding
3. Direct sunlight
Water Types
1. Mineral turbidity
2. Plankton turbidity
3. Humic turbidity
2. Plankton Turbidity (Algae, green or brown of water colour)
Treatment (Common for Old or Modern Technique)
- Stop fertilizing
- 40-50% feeding done
- 25-30% Water exchange
Old Technique
Requirements
- Copper Sulphate
- Dolamite
day -1
- Copper sulphate [1-1.5kg/acer water body] Each 200 grams tight cloths and depth 2 feet water
day -2
- Dolamite Lime 60-70kg/acer water body [1st dose]
- waits 2 days
- If don't well, continue 10-15kg per day/acer water body
- once water colour is cleaned then remove cloth
OR
Modern Technique
Requirements
- Bleaching powder
- oxygen powder
- Mineral
- Zeolite
Day - 1
Bleaching powder, oxygen powder
- Apply bleaching powder 8-10kg/acer water body depending on the age and body weight of Fish.
Note - If you apply proper dose of bleaching powder then no fish mortality will shown. Mortality But you are absolutely right if we apply excess amount of bleaching powder than of course fish mortality will shown.
- Start aeration + add oxygen powder to your pond
Day - 2
- Apply Mineral Mixture in to your pond
Day - 3
- Mixed Zeolite [10-15k/acer and Gas Powder and apply properly into your pond]
3. Humic turbidity (Dark Brown and Black of water colour)
Requirements
- Zeolite
- lime
- Sand
Note - Carbonate or Oxide Lime is Best result
Mix well the and apply the pond
Note - Stop the Aeration for 2 hours
Muriatic Acid
- Most common acid in the pool industry.
- Effective for reducing pH and total Alkalinity
- Extremely strong!
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Notes
- We cann't stop permanently, but can control it vibrio loads
- If high ph leads/create for high Ammonia
- Potassium chloride and Magnesium chloride give us more iron incase for low Salinity and use it
RMS CARE PVS CO
Mineral with magnesium chloride 5 to 6kg and potassium chloride 3 kg
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