Ardan
06-14-2003, 10:51 PM
Formalin
I have used formalin (37% formaldehyde) at 3 drops per gallon
water. After 8 hours I did a 50% wc. Add extra aeration. Use
good ventilation (it is a carcinogenic to humans)
Temp 84F ( do not use with high temps as oxygen is depleted
with formalin and will be even more depleted with high temps)
I used this for flukes some years ago on discus. Many people
use different treatment schedules. The trick is to get all flukes
that hatch from fluke eggs. Different species of flukes hatch at
different time intervals (depends on temp too).
I treated every third day for 3 treatments with some success
(the fish were breathing better). Today some people are
reporting flukes to be resistant to formalin.
This med did affect the bio filter.
Formalin can be effective in killing external parasites also.
Some people have used formalin as a fungicide. (against
fungus).
1 ml per gallon may be used as a short term bath for 30 to 60
minutes.
For flukes on baby discus:
22 ml formalin per 15 gal water + 5 tblsp salt per 15 gal water
for 1/2 hour bath, then transfer to clean tank with 1 tblsp salt/ 10
gal to help slime coat. temp 88 F in new tank. This is per Cary
Strong at Great Lakes Discus
I have used formalin (37% formaldehyde) at 3 drops per gallon
water. After 8 hours I did a 50% wc. Add extra aeration. Use
good ventilation (it is a carcinogenic to humans)
Temp 84F ( do not use with high temps as oxygen is depleted
with formalin and will be even more depleted with high temps)
I used this for flukes some years ago on discus. Many people
use different treatment schedules. The trick is to get all flukes
that hatch from fluke eggs. Different species of flukes hatch at
different time intervals (depends on temp too).
I treated every third day for 3 treatments with some success
(the fish were breathing better). Today some people are
reporting flukes to be resistant to formalin.
This med did affect the bio filter.
Formalin can be effective in killing external parasites also.
Some people have used formalin as a fungicide. (against
fungus).
1 ml per gallon may be used as a short term bath for 30 to 60
minutes.
For flukes on baby discus:
22 ml formalin per 15 gal water + 5 tblsp salt per 15 gal water
for 1/2 hour bath, then transfer to clean tank with 1 tblsp salt/ 10
gal to help slime coat. temp 88 F in new tank. This is per Cary
Strong at Great Lakes Discus