The first 25 days
Schedule by days after stocking.
- Days 1–10
Keep Moina, stabilise the water
Apply daily for the first 2 days, then every other day. Goal: keep live food in the water, with clear water, good colour and stable pH and oxygen.
- Days 11, 13After 6 p.m.
Mild disinfection every other day
Apply AQUA DINE every other day; salt can be added. Day 15 falls on the tail-rot treatment, so skip it.
- AQUA DINE1 bottle/5,000–6,000 m³
- Salt20 kg/1,000 m³, optional
- Days 15, 17, 19Morning
Tail-rot prevention
From day 17, raise the water by 15 cm at each treatment. Re-seed probiotics 24–48 hours after each treatment. Use clean intake water; check pH, NO2 and H2S regularly.
- From day 15
Start mixing into feed
Once fish take mixed feed well, add probiotics and beta-glucan to support digestion and resistance. In cold weather or when digestion is poor: PRO F 2 kg/tonne. When weather or water conditions change: BETAGLUCAN GRO 2–4 g/kg.
Dashed boxes: common farm inputs, not Than Vuong products.
Watching the first 25 days
Predator control
Predators have a large effect on fry survival: tadpoles, backswimmers, dragonfly nymphs, predatory fish and birds. From filling the pond until the end of the first 7 days after stocking, remove frog eggs and tadpoles every day. Filter water carefully and fence the pond with netting.
Monitoring fish health
First week: every morning, check how fish swim and feed, and look for red spots. From week 2: check fish, water colour and feed intake every day. From about day 20: each week, examine the skin and gills of 5–10 fish.
From day 25 to harvest
At the end of week 4, thin out to 150–200 fish/m². From then on, exchange water according to actual water quality and keep the routine.
- Every 10 days
Disinfect the water, rotating products
Run aeration while applying. Apply AQUA DINE after 6 p.m.
- 24–48 hours after disinfection
Re-seed probiotics
In fingerling ponds that are hard to exchange or have a lot of bottom organic matter, use NIAZYME.
- Every 5–10 days
Minerals and toxic gases
GROWMIN every 5–7 days, YUCCA GRO every 10 days. YUCCA C when NH3 is high and fish gasp at the surface.
- Routinely
Mixed into feed
After mixing, coat with ATOMIC Plus (for pellets, not for powder feed), air-dry for 20 minutes, then feed.
Daily checks
- Every morning, check whether fish crowd at the pond edge, how they swim and whether the bottom is dirty.
- Remove weak and dead fish to check their exterior, organs and parasites; record losses every day.
- Check 5–10 fish for parasites regularly, especially before and after deworming.
When losses rise
Losses rising for 2–3 days in a row: cut feed to 50–60% and dissect 5–10 fish. If losses have not fallen after 2–3 days: stop feeding, identify the disease and call Than Vuong technical support at +84 867 957 568 before using any drug.
Make this schedule for your pond
Enter stocking date, area and depth to get each day's tasks and the kilograms to apply. Open the tools