A happy fish is a healthy fish is not a bad rule to follow. This means
provision of the
right environment with plenty of refuges available, suitable
companions to avoid stress and
quarrels, the right type of food in sufficient
quantities without overfeeding and the finest of
water parameters you can
furnish with frequent water changes to mimic the ocean washing
the reef clear
of pollutants. Couple this to water guidelines on temperature, salinity, pH
and
so on set at slightly BELOW the majority of recommendations.
CRYPTOCARYON IRRITANS (ICH)
ICHTHYOPONUS
LYMPHOCYTISIS {CAULIFLOWER DISEASE}
MONOGENIA
OODINIUM OCELLATUM {MARINE VELVET}
FIN and BODY ROT
HEAD and LATERAL LINE DISEASE
POISONING
SHOCK
These data sheets are published to further propagate knowledge
about fishes,
inverts and the
keeping of them successfully. I do hope that you will find them
informative and useful.
The tables below should provide directs links to whatever subject you are
interested in. It is
planned to increase these as time allows, but if there is
a particular species or subject you
wish to learn more about then please e-mail
me.
click here for fishydod@yahoo.com
Add to this, quarantine of all new fish for a period of some three weeks. Quite
a number of
retailers miss out on this desirable action and also perhaps that
old fashioned but effective
trick of a fresh water dip.
These precautions will minimise outbreaks of disease as similar to humans, the
skin and
tissue abound with bacteria.
Even so, sooner or later trouble will occur and the vital and most important
insurance is
observation. By frequent checking at an absolute minimum, daily,
any sudden change in
habit or behaviour can be seen and the cause ascertained.
Most conditions start with loss of
appetite and or increased respiration the
normal rate being between 80 and 110 gill
movements per minute. Assuming the
environment is not
to blame, and it frequently is I should add, then we need to
examine the fish in more detail.
To enable this to be efficient one should be
familiar with the anatomy and physiology of
ones stock. The following
illustrations highlights some of the surface anatomical features.
Apart from the safeguards previously mentioned to avoid outbreaks of disease
the
avoidance of transmitting disease spores to healthy fish is paramount. To
further this an
isolation tank is required. If you do not have a seperate
facilty for this then one could use a
large jar such as used for keeping sweets
and set up as a mini tank solely for treatment
and quarantine. It can even be
kept within the main tank.
The fresh water treatment I mentioned earlier is I believe one of the most
simple yet effective
preventative measures. The marine fish is placed in a
container of fresh e.g. not salty water,
and immersed herein for a period of
three to ten minutes. During immersion continuous
observation is advised and
if the fish shows any signs of distress the treatment should be
discontinued.
Note however that the subject will experience some discomfort anyway.
The temperature of the dip should be several degress higher than the water from
which the
fish was originally in.
The change in pH, of temperature and most importantly the salinity is
frequently enough to
destroy parasites and bacteria. As this is achieved minus
the use of chemicals it has my
support. All my new arrivals are given this
treatment as a matter of routine.
CAUSE
A very virulent protozoan attacking the skin and gill areas in particular,
caused by a parasite
from the genus Ichthyopthirus multifilis and in
freshwater, Cryptocaryon irritans in salt water.
Should the protzoa enter and
take hold within the muscle tissue then treatment is
problematical.
SIGNS & SYMPTOMS
Respitatory difficulty and or loss of appetite if untreated will ensure a fatal
outcome. Manifest
as small white spots similar to a dusting of salt grains
about 1mm accross.
TREATMENT
Isolation first and foremost, raise temperature to 80oF {36oC} and treat with
copper baths,
that is copper sulpahte at 0.15 parts per million or ppm used
frequently over a two week
period. The bath may be combined with methylene
blue. If successful the parasite may be
seen on the floor of the treatment
tank, enclosed in its membrane. If the parasite cannot find
a host within 24
hours they die. By removing all fish from the affected tank for this period
ensures that no further infection remains. New water and UVL treatment may
also prevent
recurrence.n
Sometimes a freshwater dip can effect a cure.
This is probably the most common disorder found in marine tanks.
CAUSE
Althoug not widespread this parasite attackes the internal organs with fatal
results.
SIGNS & SYMPTONS
Appetite is lost, emaciation follows, loss of colour and fungal growths are
seen on affected
areas. Exopthalmus that is protrusion of the eys may also be
witnessed.
TREATMENT
Has responded to antibiotics but only in the early stages and feeding with
vitamin
supplements mnay prevent assist in avoiding an outbreak. There are
various anti fungal
treatments available. A classic example of the need to
quarantine all new stock.
CAUSE
A common condition particularly in fish from the Caribbean region, the
causarive factor
being a virus.
SIGN & SYMPTONS
Creamy white growths on the body resemble miniature cauliflower florets, hence
the common
name and measuring from 1 to 2 mm in size. these are called dermal
papilloma.
TREATMENT
Immediate isolation and kept there until treatment has worked. Then a further
seven days to
ensure it has been erradicated totally.
The cysts or papilloma can be cut away using a scalpel and the affected areas
treated with
acriflavine but there is no known cure and we are to a great
extent dependent on the natural
immune system of the fish itself which is
enhanced by excellent feeding and perfect water
parameters.
CAUSE
There are well over 100 different species of this worm or technically
'monogenic flukes', all
of which can affect fish and are characterised by hooks
with which they attatch to a host.
SIGNS & SYMPTONS
Increased respiration accomanoied by rubbing or flicking off a solid object. On
examination,
the gills show small white dots. Discoloured gill membranes may be
noticed, coupled with
excess mucous and fish go off their food and lie
motionless or gasp at the surface of the
water.
TREATMENT
Isolation first and foremost to prevent spreading. There are various commercial
treatments
available which have been used with success as can baths such as
formalin and potassium
permanganate. Formalin at 100ml per 100 litres or one
grain of potassium at 0.25%.
Improvement of general water quality can affect a cure if carried out in the
early stages.
CAUSE
Perhaps the most common disorder found in tropical fish and caused by a
parasitic infection.
The parasite being a dinoflagellate or protzoan. Often
referred to as velvet or coralfish
disease and in marines 'Amyloodium'. This
protozoa can grow up to 1mm in size and this
condition is liable to flare up at
any time particularly in a stress situation when the natural
immunity is
lessened.
SIGN & SYMPTONS
The fish loses all interest in food and become quite lethargic as if finding
any movement a
bother. Increased respiration which is due to the parasite
attatching itself to the gill although
it can and does affect the skin surface
also. Loss of balance is another sign and if untreated
then death will ensue.
Flicking or rubbing against a solid surface in an attempt to dislodge
the
parasite is also seen. Small pin head sized spots appear on the body giving
a peppered
appearance. In the terminal stages a fish will sink to the bottom
and lie on its side. Ulcers
may sometimes may appear on the scales.
In many ways the condition resembles whitespot and it can be difficult to
differentiate
between the two. However treatment is virtually the same.
TREATMENT
Isolation until the outcome has been determined, taking care that water
parameters are equal.
Then try a fresh/salt water bath and most fish can
tolerate this for up to 15 minutes observing
for overt signs of distress all
the time.
Copper treatments may be effective but should be used in strict accordance with
the
instructions. or you can see your local vet and request some Quinicrine
Hydrochloride used
at 6mg per gallon. Two treatments being required at two day
intervals.
CAUSE
This somewhat generic term covers the condition that is manifest in the signs
that appear
and is caused by Bacteria.
SIGN & SYMPTONS
The fins. mouth, eyes and body tissue show a fungal growth, white, fuzzy,
similar to cotton
wool and almost always associated with loss of appetite.
TREATMENT
Remove gently with a spatulae as much of the fungus as is possible and paint
the area with
acriflavine or gentian violet. Naturally isolation will be
implemented and maintained for a
further seven days after all sign have
disappeared. Treat host tank with water changes and if
possible UVL to prevent
further outbreaks and tighen up on water quality.
Well kn own to discus keepers this condition manifests as holes or pits along
the head and
lateral line. Often seen where environmental conbditions are below
par but the actual
causative factor if as yet unknown. The only course is vast
improvement to water quality and
diet with vitamin supplements. If this fails
then the fish should be disposed of or at the very
least NEVER used for
breeding.
In Seascape, Volume 12, 1955, Steve Collins of the Indianopolis Zoo-Aquarium
reported that
HLLD showed much improvement via the addition of Vitamin A to the
diet and after much
experimentatiion with various green supplements he
eventually settled mon brocolli as the
supplemental food to provide sufficient
vitamin A.
Obviously not a disease as such but nevertheless can have fatal results. This
state can affect
tank inhabitants quicker than any other and is likely caused
by a polluted environment from
such things contaminated incoming water, paint
fumes, smoke, nicotine getting into the air supply
or from unclean hands.
Stock must be removed to a pollution free environment as quickly as
possible
untikl the cause has been ascertained and steps taken to prevent its
recurrence.
Frequently seen in newly purchased stock when they are placed in their new home
and it can
be fatal if ignored. Manifest as increased respiration, folded fins,
loss of colr and the fish
looking totally dejected. The affected fish will
often dash about wildly when disturbed.
Treatment is preventative by using proper introduction techniques. However the
sad fact here
being that many fish have become truamatised by catching
techniques, faulty carriage, or
simply it is unhappy with its new home for
example being bullied by other occupants.