Protocol QT-04No antibiotic

White liver, white gill from repeated antibiotics

Farmers often mistake this for a fresh bacterial infection and feed more antibiotic, deepening the loop.

AgentA treatment consequence, not a bacterial disease

SpeciesPangasius — the principle applies to all species

WithdrawalNo antibiotic used

Step 0 · Identify

What you see at the pond

Not a new infection. Ask the pond's history first: how many antibiotic courses, and how long each.

Pale white liver and gills
Prolonged poor appetite, slow growth
History: several antibiotic courses, or one long course

Handling

Day by day

Environment first, medicine after. The chart below includes the withdrawal period.

1
Stop feeding, heavy water changeDay 1–2
Do not add any antibiotic at this stage.
2
Cut the pathogen loadDay 3–4
FYTOBLOOM PLUS1 L / 1,500 m³
Not yet in the web catalogue. Substitute AQUA DINE New.
3
Iron and B12, liver recoveryDay 3–7
Fe+B12 + HERB GUARD100 ml/5 t fish + 1 L/1,000 kg feed
Fe+B12 is not in the web catalogue. The closest product is VIMIX — it contains ferrous glycine chelate and vitamin B12, at 3–5 g/kg feed. Technical staff must confirm the substitution.
4
Cut the pathogen load againDay 11
FYTOBLOOM PLUS1 L / 1,500 m³
5
Deworm if gill flukes are foundDay 8–12
AQUA PRAZI100 g / 20–30 kg feed, 3–5 days
Only this step creates a withdrawal period — 4 weeks.

Withdrawal

None

No antibiotic is used, so no withdrawal period — unless the AQUA PRAZI step is used, which is 4 weeks.

No improvement in 3–5 days

The liver recovers over weeks, not days. If the fish are not feeding again after five days, repeat the protocol — do NOT switch to antibiotics, which would deepen the very cause.

Note

Heavy gill fluke burden is also a cause. Check the gills before blaming the drugs.

Products used