ZOOLOGICAL SOCIETY 
Tue Care or Sick Fisues 
Formulae for all solutions referred to in the 
text: 
(To inerease circulation. ) 10 
drops to a gallon of water, leaving fishes in the 
solution for five minutes. 
Salt.- 
Ammonia— 
(Turk Islands’ sea salt is the best.) 
Weak Solution, for all day treatment: 
34 teaspoonful of sea or table salt and 
14, teaspoontul epsom salt, to a gallon 
of water. (Change every 24 hours.) 
Stronger Solution, for one-half hour treat- 
ment: 
%4 tablespoonful of sea or table salt 
and 14 tablespoonful epsom salt, to a 
gallon of water. 
20 percent. Solution, for sterilizing tank or 
treating diseased or injured spots—not 
to touch the gills: 6 tablespoonfuls of salt 
to a pint of water. 
Potassium Permanganate. 
Weak Solution, for 15 minute baths: 
5 small grains to a quart of water, 
20 small grains to a gallon of water, or 
a level teaspoontul to every +40 gallons. 
Very Weak Solution, for 8-hour treatment: 
2 small grains to a gallon of water. 
Strong Solution, for application to injured 
or dis 
the gills: 
sed spots. This must not touch 
Add just enough water to the 
permanganate to make a solution. 
POLYCENTRUS SCHOMBURGKI 
Bade. 
Photograph by Dr. E 
BULLETIN 
© 
aa 
BARBUS PHUTUNIO 
Photograph by Dr. E. Bade 
(For sterilizing plants, use the Weak Solution 
for ten minutes. ) 
All solutions recommended should be made up 
fresh for each treatment, and care should be 
taken, when transferring fishes from one re- 
ceptacle to another, to see that the water in 
each is of the same temperature. 
PREVENTION OF Disea AND THE BEGINNING OF 
SICKNESS 
The commonest causes of sickness of fishes 
in captivity are overcrowding, overfeeding, im- 
proper foods, introduction of sick specimens 
into a tank of healthy fishes, failure to remove 
uneaten food, too frequent changing of the 
water, too much or too little sunlight, absence 
of good oxygenating plants, 
and limited swimming space. 
Trouble may also ensue from 
the introduction of fish ene- 
mies or diseases on plants, 
and from the effects of chill- 
ing. 
Some aquarists keep their 
goldfishes in health by a 
regular monthly bath in a 
weak solution of potassium 
permanganate, though many 
specimens keep well for 
years without this kind of 
treatment. All fishes are 
benefited by a pinch of salt 
in the water, either table or 
epsom salt. Nothing agrees 
so well with tropical fishes 
as a heightening of the temp- 
erature of the water and a 
pinch of salt in it. 
