118 GOLDFISH VARIETIES AND 
is particularly valuable, as it can be had all winter in the better fish stores. 
Anemones should have small bits of food offered them with forceps 
(shown on page 229), lightly touching their tentacles with the offering. 
Three times a week is often enough to feed these lower forms. 
The fishes may be fed every day or two, according to temperature, 
always remembering that animal food not quickly eaten soon fouls the 
water. 
Diseased Marine Fishes. Very little is known about treating the 
ailments of marine fishes. As salt is the general cure-all for freshwater 
fishes, it has been discovered that less salt is the best general treatment 
for marine fishes that are out of condition. Short trials at hydrometer 
test 1.010 are beneficial, this, of course, being brought about gradually. 
Otherwise we see no reason why animal parasites, injuries, etc., should 
not be treated the same as for freshwater fishes. 
