Hi to 'made in Malaysia' and all other friends,

Sorry to intrude...in normal quarantine 0.5 ppt (part per thousand) to 1 ppt is good for quarantine as that will prevent discus from dehydration (loss of salt) due to transport injuries (50 to 100gm per 100litre).

In treating ich (white spot), a dose of 2 ppt(200gm per 100litre water) is necessary.

In general estimation one half-closed-handful of salt to 100litre of water is about 1ppt.....but such estimation is not professional.

In the discus spleen, there is acertain amount of salt...as in most other fishes.....but different fishes have different concentration.

Guppy has 4ppt in their system (spleen) all the while so is platy (documentated), while discus...maybe 1 to 2. If a fish doesn't have salt in the spleen, even a small concentration of salt treatment would kill it.

Never subject your discus...even other fishes to 30ppt (3kg of salt) treatment for half an hour. That is seawater concentration and may cause irreversible damage...(over loading the liver)...... to discus.

This concentration of 30 ppt is also used in 'Stress test' especially for guppy (documentated) and in general, guppy tends to start dying in 35 minutes (eventhough there is 4ppt in the spleen)...and the longer it takes for all the 10 pieces of guppy to die, the average stress tolerant level is averaged and measured and thus is the reading. so, just imagine what will happen to our discus if put under half an hour treatment?

At best, 10ppt for an hour (1kg per 100litre for 1 hour) for discus......but not me.

Just my two cents,

Take care,
Andrew

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