Pre-Stocking Pond Bottom Preparation: Chemical vs Microbial, Which Is More Effective and Efficient?

Pre-stocking pond bottom preparation is a crucial step that determines the success of an aquaculture cycle. Farmers often face two choices: using synthetic chemicals or utilizing probiotic microbes. This article thoroughly compares the costs of pre-stocking pond bottom preparation using both methods, based on technical data and microbiological science. We will also discuss how products like Biosolution's Pond Bottom Preparation Formula can be an effective and economical solution.

Why Is Pre-Stocking Pond Bottom Preparation So Important?

A poorly prepared pond becomes a source of problems throughout the cultivation cycle. Uneaten feed, feces, and organic matter from the previous cycle accumulate at the pond bottom. If left unchecked, toxic compounds such as ammonia (NH₃), nitrite (NO₂⁻), and hydrogen sulfide (H₂S) will accumulate, causing stress to the seed and even mass mortality. Therefore, pre-stocking pond bottom preparation aims to:

• Decompose residual organic matter.
• Stabilize pH and alkalinity.
• Reduce pathogen populations.
• Create an environment that supports plankton growth as natural feed.

Without proper preparation, the risk of cultivation failure increases dramatically. The cost of treatment and losses due to mortality are often greater than the preparation cost itself.

Chemical Method in Pond Bottom Preparation

The chemical method typically uses compounds such as chlorine (calcium hypochlorite), lime (CaCO₃), or formalin for sterilization and pH control. Here are the details of cost and effectiveness:

Direct Costs

• Chlorine: IDR 15,000 - 25,000 per kg, dosage 10-20 kg per hectare.
• Agricultural lime: IDR 500 - 1,000 per kg, dosage 1-2 tons per hectare.
• Labor: IDR 200,000 - 500,000 per day.

Total cost per hectare for one cycle: approximately IDR 1,000,000 - 2,500,000.

Disadvantages of Chemical Method

1. Kills beneficial microbes: Sterilization is non-selective, so plankton and natural probiotic bacteria also die.
2. Harmful residues: Chlorine leaves chlorine residues that must be neutralized, requiring additional time.
3. Long-term instability: pH fluctuates easily after application.
4. Recurring costs: Must be repeated from scratch every cycle.

Microbial Method: Probiotics for Pond Preparation

Probiotics like Biosolution's Pond Bottom Preparation Formula contain beneficial bacteria, namely Bacillus subtilis and Thiobacillus sp., as well as extracellular enzymes. This product works naturally to:

• Decompose organic matter.
• Stabilize pH through the activity of Thiobacillus sp. which oxidizes sulfur.
• Suppress pathogens competitively.

Direct Costs

• Pond Bottom Preparation Formula: IDR 250,000 per liter, dosage 5 L per hectare.
• Application: Simply spread during drying, no special equipment needed.

Total cost per hectare: approximately IDR 1,250,000 (only one application per cycle).

Advantages of Microbial Method

1. Effective and selective: Only suppresses pathogens, beneficial microbes survive.
2. Safe and environmentally friendly: Leaves no harmful residues.
3. Long-term effects: Probiotic populations can persist and continue to provide benefits.
4. Reduces early disease risk: Pond environment is more stable from the start.

Long-Term Cost Comparison

When calculated for 5 cultivation cycles (e.g., 1 year with 2 cycles), the cost difference becomes significant.

In addition, the microbial method provides added value in the form of:

• Increased stocking density: A better environment allows higher densities without disease risk.
• Reduced feed costs: Natural plankton grows better, reducing dependence on artificial feed.
• Reduced treatment costs: Lower disease incidence.

Mechanism of Action of Pond Bottom Preparation Formula

This product contains three main components that work synergistically:

1. Bacillus subtilis: This Gram-positive bacterium produces protease, amylase, and lipase enzymes that break down protein, carbohydrates, and fats from leftover feed. The decomposition process is rapid, reducing sludge accumulation.

2. Thiobacillus sp.: This chemosynthetic bacterium oxidizes sulfur compounds (e.g., H₂S) into sulfate, which is non-toxic. Its activity helps stabilize pH in the neutral range (6.5-7.5).

3. Extracellular enzymes: Accelerate the hydrolysis of complex organic matter into simple compounds that can be utilized by plankton.

Application is done by spreading 5 liters per hectare into the pond during drying, in the morning before seed stocking. Once per cycle is sufficient.

Case Study: Farmer in West Java

Mr. Agus, a vaname shrimp farmer in Indramayu, switched from chemical to probiotic methods after experiencing losses due to high seed mortality. Using the Pond Bottom Preparation Formula, he reported:

• Mortality reduction from 30% to 5% in the first week.
• More uniform growth and harvest time 5 days earlier.
• Pond preparation cost decreased by 20% per cycle.

"I used to hesitate because the probiotic price per liter was higher, but after calculating, it turned out to be cheaper because I no longer needed to buy lime and chlorine. The harvest was also better," he said.

Conclusion

Pre-stocking pond bottom preparation using the microbial method is proven to be more effective and efficient than the chemical method, both in terms of direct and long-term costs. Products like Biosolution's Pond Bottom Preparation Formula offer a science-based solution that is safe, environmentally friendly, and capable of increasing aquaculture productivity. With a single application, farmers can start the cycle with a clean and stable environment, reducing disease risk and optimizing harvest yields.

If you want to start a new cycle with better pond preparation, consult your needs with our expert team via WhatsApp or see product details on the Pond Bottom Preparation Formula product page.