This is interesting.. I'll be trying out on the "covering all sides and reducing food method" to see if it really works.. I hope my efforts don't go to waste cause I won't be seeing my arowana for 3 months.....Droopy Eyes
Cause : Fat accumulation on the eyes due to overfeeding. The "looking down" for food and other attractions due to tank kept environment. Another known cause is feeding chunky pieces of meat. This is non fatal and it is only cosmetic. If the fish is released back to the pond, the eyes will be back to normal. Symptoms : The eye protruding and slanting downwards. Remedy : Cover all sides of the tank completely with thick dark colored paper all the way up to the top (prevent outside light from entering into the tank from the side). Position a centralised light source. Switch on the light for 12 hours a day. During feeding, try feeders that float..eg.. frogs and crickets. If feeding market prawns, try hand feeding and not letting it sink to the bottom. Cut down on diet. Cut feeders into small pieces before feeding it to the Arowana. Change the location of the tank to one of lower elevation. Remove the paper covers only after 3 months.
Tail Cutting Procedure. Transfer the fish into a "holding tank; with very low water level(about 3-6 inches above the fish) , add naesthesia
into the tank drop by drop.Watch the fish for few minutes before adding another drop, never overdose especially when administering anaesthesia!Once the fish loses consciousness, remove the fish and place it on the clean damp cloth.Use the scissors(make sure sterilized) to carefully trim of the affected tail fin by following the fan shape contour of the fin. Place the fish back into the tank and increase the amount of dissolved oxygen in the tank, if necessary direct the airflow of the airstone towards the gills of the fish to help accelerate consciousness.After regaining its consciousness, let the fish rest and off all lights so as to let the fish recuperate under dim conditions.Feeding is not required if the fish shows no signs of interest in food.Change water everyday (20-30%)for 3-6 days to maintain good water quality.Salt may be added to reduce parasite attacks and help to increase recovery rate.
About the anaesthesia, which should I use? If I dosed the whole tank, do I need to remove all the water after the procedure?