Pangasius fry / fingerling — Nursery
The fry-to-fingerling nursery stage decides whole-crop survival. Fry are sensitive and die easily from a foul nursery, parasites and early bacillary necrosis. Than Vuong: clean nursery + strong digestion + immunity + early disease control.
A successful pangasius nursery needs: (1) a clean tank/pond — SOILMAX New, NIAZYME probiotics, YUCCA C for toxic gas, gentle water exchange; (2) digestion and immunity support with PRO F, BIOMAX, ACTISEL, AQUAMOS; (3) early disease control: Edwardsiella ictaluri necrosis often appears at the fingerling stage → FLOR-MAX; parasites (Trichodina, flukes) → AQUA PRAZI. Fry are very sensitive — dose carefully and avoid shock.
Pangasius fry are nursed at high density, feed continuously and are very sensitive. Good water and nutrition here lift survival and fingerling quality.
Excess fine feed spikes NH3 in small nursery tanks/ponds. Probiotics + gentle exchange keep water clean and reduce fry loss.
Fry guts are immature and easily upset. Digestive enzymes and yeast aid absorption, with immune support to keep fry strong and reduce loss.
Bacillary necrosis (Edwardsiella ictaluri) and parasites (Trichodina, flukes) often hit fingerlings. Early detection and gentle dosing save the batch.
Clean tank/pond, seed SOILMAX New + NIAZYME before stocking fry.
Gentle exchange, apply YUCCA C when gas rises, avoid leftover fine feed.
Feed PRO F / BIOMAX / ACTISEL + AQUAMOS, CANFORTA for vitamins.
Watch the liver + scope parasites; AQUA PRAZI for flukes/Trichodina.
FLOR-MAX dosed carefully by size, with HERB GUARD; gentle WORK 80 / AQUA DINE.
Decided by what you can see at the pond, no antibiogram needed. Each protocol carries exact doses, day-by-day steps and the withdrawal period.
QT-01
This one cannot be judged from the outside. Open 5–10 fish to see the white pus spots on liver, kidney and spleen — the only reliable sign.
QT-02
Unlike bacillary necrosis, this one shows from the outside: redness at the fin bases, around the vent and on the flank.
QT-04No antibiotic
Farmers often mistake this for a fresh bacterial infection and feed more antibiotic, deepening the loop.
QT-05No antibiotic
The sign is behaviour before it is a lesion: startling during feeding, and gathering into small groups swimming through each other.
QT-06
Deworm on a schedule rather than waiting for symptoms. It is the cheapest prevention in the whole crop.
SOILMAX NewConcentrated bottom probiotics, decompose organics, cut toxic gas
NIAZYMEClean water & bottom, remove toxic gas, build water color
AQUA PRO4000XBroad-salinity probiotics treat bottom/water, control algae — fresh & marine
YUCCA CFast NH3 absorption, anti-shock, stabilize environment
PREMIX EDTAChelate heavy metals, reduce acid-sulfate (iron, aluminum, manganese)
PRO FProbiotic for gut support, better digestion in fingerlings
BIOMAXYeast boosts immunity, balances gut microbiome
ACTISELLive yeast balances gut microbes, stimulates feeding
AQUAMOSYeast nutrients stimulate immunity, healthy gut, faster growth
BETAGLUCAN GROBeta-glucan boosts health, stimulates natural immunity
CLEVERSuppress opportunistic gut bacteria (Vibrio)Use gentle doses for fingerlings, under guidance.
Keep nursery water clean (SOILMAX New, NIAZYME, YUCCA C, gentle exchange), support fry digestion and immunity (PRO F, BIOMAX, ACTISEL, AQUAMOS) and detect disease early (scope parasites, watch the liver). Feed to appetite, avoid leftover fine feed.
Usually fast toxic-gas rise in the nursery, parasites (Trichodina, flukes) or early necrosis. Check water, scope parasites and watch the liver to treat the right cause.
Treat with FLOR-MAX at a careful, size-based dose (fingerlings are drug-sensitive), with HERB GUARD for liver recovery and reduced feeding. Observe withdrawal.
Apply SOILMAX New + NIAZYME regularly; use YUCCA C to absorb NH3 when high; exchange water gently and avoid leftover fine feed.
Than Vuong technical team — free protocol consultation for your pond/cage, 24h response.
Aquaculture technical assistant
CALPHOS GRO
MIXBOOM
MAX LIVER (Dung dịch)
OXYTETRA
TETRA-C
WORK 80
POWER GLUTA
AQUA DINE New