“
'
_NaturalFoods ;
"
'
103
amount
not make ;" the effort and inconvenience worthwhile.
Young fish particularly benefit from large quantities of small daphnia
in their diet.
'
’
Tubifex worms are obtained commercially from mud in tidal
estuaries, mainly the Thames in London, and from sewer outlets and
_
similar places. Collection is unpleasant and specialised, requiring a
knowledge of local conditions and equipment such as sieves and
-»
thigh waders. They can, however, be bought at most aquarists’ suppliers at reasonable prices for small quantities and it would not benefit the average aquarist to collect his own. They cannot be completely
recommendedhecause of various
to
the
existing in their natural habitat they require thorough washing and cleaning with a suitable commercial preparation before use,
”
5
and will easily die unless kept in cold running water. As bought they
may or may not be clean and fresh, depending on the previous treat—
'
ment received, and those which are unhealthy must not be fed to
the fish. It is difficult to be sure what state they are in. Some varieties '
of Tubifex are said to be parasitic and able to live inside, and later
eat their way
out of fishes which swallow
Any which ‘ “
settle in a gravel bed will quickly establish themselves so well that
‘
only certain fishes can then make use of them. They live in the gravel
for some time but die eventually, especially at tropical temperatures,»
and their resulting decomposition can cause pollution if they are
present in large numbers. Boils and gill disorders and mysteriousun—
explained deaths seem to be a feature of fishes fed on this
‘:—
so for all these reasons the aquarist is advised against its use.
‘
properly called gnat larvae, occur mainly in7 cold
‘
weather in Waters containing decaying vegetable
aïe"
Α
small._free—swimming creaturés about half an inch long andWithä; ‘ …
,
transparent body which is usually horizontal ”in the water.
collected in the same way …as daph‘n‘ia
are
often found“Witl—iiî
They have the advantage that they can be crowd€d together
,
’.fo‘r "transport and storage and make an
fishes. They
to catchfish frÿ
appendageat the1rheadsand =so must not be putin w1thsmallsheS
Ï
,
The1rf00dValue seems excellent and they‘ live in the aquar1um for
'
snalls can
"
a natural
Whenthey
kHwth pptary1qudthy can buhdndfd…h
buttheyaret00t0ughf0rmost othershes Snmïseag00df00d
'
_NaturalFoods ;
"
'
103
amount
not make ;" the effort and inconvenience worthwhile.
Young fish particularly benefit from large quantities of small daphnia
in their diet.
'
’
Tubifex worms are obtained commercially from mud in tidal
estuaries, mainly the Thames in London, and from sewer outlets and
_
similar places. Collection is unpleasant and specialised, requiring a
knowledge of local conditions and equipment such as sieves and
-»
thigh waders. They can, however, be bought at most aquarists’ suppliers at reasonable prices for small quantities and it would not benefit the average aquarist to collect his own. They cannot be completely
recommendedhecause of various
to
the
existing in their natural habitat they require thorough washing and cleaning with a suitable commercial preparation before use,
”
5
and will easily die unless kept in cold running water. As bought they
may or may not be clean and fresh, depending on the previous treat—
'
ment received, and those which are unhealthy must not be fed to
the fish. It is difficult to be sure what state they are in. Some varieties '
of Tubifex are said to be parasitic and able to live inside, and later
eat their way
out of fishes which swallow
Any which ‘ “
settle in a gravel bed will quickly establish themselves so well that
‘
only certain fishes can then make use of them. They live in the gravel
for some time but die eventually, especially at tropical temperatures,»
and their resulting decomposition can cause pollution if they are
present in large numbers. Boils and gill disorders and mysteriousun—
explained deaths seem to be a feature of fishes fed on this
‘:—
so for all these reasons the aquarist is advised against its use.
‘
properly called gnat larvae, occur mainly in7 cold
‘
weather in Waters containing decaying vegetable
aïe"
Α
small._free—swimming creaturés about half an inch long andWithä; ‘ …
,
transparent body which is usually horizontal ”in the water.
collected in the same way …as daph‘n‘ia
are
often found“Witl—iiî
They have the advantage that they can be crowd€d together
,
’.fo‘r "transport and storage and make an
fishes. They
to catchfish frÿ
appendageat the1rheadsand =so must not be putin w1thsmallsheS
Ï
,
The1rf00dValue seems excellent and they‘ live in the aquar1um for
'
snalls can
"
a natural
Whenthey
kHwth pptary1qudthy can buhdndfd…h
buttheyaret00t0ughf0rmost othershes Snmïseag00df00d