Gioi thieu SUPERPH: The Pond Conditioner That Keeps Shrimp Water Chemistry From Turning Against You

Farmers in the Mekong Delta rarely talk about pH as an abstract chemistry number. They talk about it the way a mechanic talks about oil pressure. When it drifts, everything downstream starts knocking, and by the time you hear the noise, the damage is already priced in. Gioi thieu SUPERPH is worth a close look because it sits directly on that pressure valve.

What SUPERPH Actually Is

SUPERPH is a granular alkaline mineral conditioner built for brackish and freshwater aquaculture ponds. The formula leans on a blend of fine-ground calcium carbonate, dolomite, magnesium oxide and sodium bicarbonate, with a buffering fraction that keeps the pH lift gradual instead of explosive. A standard analysis reads roughly 30 to 34 percent calcium, 5 to 7 percent magnesium, and a total alkalinity contribution in the region of 90 to 110 mg/L as CaCO3 per 20 kg per 1,000 m3 of water at one meter depth.

The particle size matters more than most people admit. SUPERPH is milled to pass largely through a 100-mesh screen, which is why it dissolves across four to six hours rather than dropping straight to the bottom and sitting there like gravel. That slow release is the whole point. A product that raises pH in twenty minutes is not a conditioner, it is a shock.

Packaging is straightforward: 20 kg woven bags with a PE liner, and a 1 kg retail pouch for small holdout ponds and hatchery tanks. Shelf life runs about 24 months if the bag stays sealed and off a wet floor.

Why pH Discipline Decides Harvest Weight

Black tiger and whiteleg shrimp both molt on a cycle that runs on water chemistry. When morning pH drops below 7.2 and afternoon pH climbs past 8.8, the daily swing is doing damage even when the water looks clear and green. The classic symptoms show up in sequence: slower growth in the first 30 days, uneven molting around day 45, then soft shells and cannibalism when the new cuticle hardens slowly.

There is a bacterial angle too. Vibrio parahaemolyticus and its relatives tolerate acidic conditions better than the shrimp do. Ponds that sit at pH 6.9 for a week are not just chemically stressed, they are running a more favorable environment for the pathogens farmers spend the most money trying to suppress. Alkalinity is the quieter half of the story. When total alkalinity falls under 80 mg/L, pH becomes volatile, because there is no carbonate buffer left to absorb the respiration cycle. SUPERPH addresses both numbers at once, raising pH and rebuilding the buffer that holds it steady.

How the Application Protocol Works

The standard broadcast is 15 to 20 kg per hectare at 0.4 to 0.5 m average depth, scattered evenly across the pond surface in the late afternoon. Afternoon application gives the carbonate fraction the overnight hours to dissolve and buffer before the critical dawn window, which is when pH bottoms out and oxygen is thinnest.

In a well-documented trial pond near Bac Lieu, a 3-hectare grow-out sitting at pH 6.9 with 62 mg/L alkalinity received 55 kg of SUPERPH at 16:30. By 22:00 the same night, pH had reached 7.6 and alkalinity had climbed to 108 mg/L as CaCO3. By the following dawn, pH held at 7.8, and the afternoon peak came in at 8.5 instead of the 9.1 recorded the week before. That 0.6 point reduction in the daily swing is where the real money is.

For hatchery tanks, the dose is much smaller: 3 to 5 g per cubic meter, dissolved in a bucket of pond water first and poured along the aeration line. Never dump dry granules into a hatchery tank with larvae in it.

SUPERPH Versus Hydrated Lime

Hydrated lime, calcium hydroxide, is cheap and fast and brutal. A 150 kg application on a hectare pond can push pH from 7.0 to 9.3 within ninety minutes. Shrimp respond to that kind of spike by going off feed for two days, and if the application lands in the middle of a molt cycle, the mortality can be ugly. The effect also fades in 48 to 72 hours, so farmers end up dosing twice a week and chasing their own tail.

SUPERPH behaves differently. In side-by-side comparisons on the same farm, ponds treated with SUPERPH held pH above 7.5 for five to seven days on a single application, while lime-treated ponds fell back below 7.2 by day three. The cost per hectare is higher, roughly 450,000 to 600,000 VND for a 20 kg bag depending on the dealer and the season, but the labor and the feed waste savings usually close the gap within a single crop.

Where It Fits in the Weekly Routine

SUPERPH is not a standalone program and treating it as one is a mistake. The working sequence on most well-run farms looks like this. Apply SUPERPH on day one. Wait 24 hours. Then dose molasses at 3 to 5 kg per hectare to feed heterotrophic bacteria, followed by a Bacillus probiotic the next morning. The pH correction gives the probiotic a stable environment, and the carbon source lets it colonize. If you invert the order and put probiotics in acidic water, you are pouring money into a pond that will kill most of what you just added.

Do not mix SUPERPH with chlorine, potassium permanganate, or any strong oxidizer in the same bucket. The reaction is not dangerous at field doses, but it wastes both products. Keep the two applications at least 48 hours apart.

Common Mistakes Worth Avoiding

Applying at noon under full sun is the most frequent error. Surface water heats up, dissolution accelerates, and the pH lift hits the same hours the algal bloom is already driving it upward. The result is an afternoon reading above 9.0 and a confused farmer.

Overdosing is the second one. Doubling the rate does not double the benefit, it pushes pH past 8.8 and starts converting ammonium into toxic free ammonia. Stick to the published rate and measure before you decide to repeat.

Third, many farmers skip the alkalinity test entirely and only watch pH. A pond sitting at pH 7.6 with 45 mg/L alkalinity is a pond that will crash the moment a heavy rain dilutes it. SUPERPH fixes both, but only if you know which one you are fixing.

For anyone running brackish water in the delta, the coastal provinces, or the expanding inland shrimp zones, Gioi thieu SUPERPH comes down to a simple proposition: a slower, steadier mineral correction that holds its ground for a week instead of a day, at a price that makes sense once you count the feed you did not waste and the molt you did not lose.