GILL CURL???

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Is the edge of the gills soft or hard? Does the edge of the gills curl or does the entire gill curl outward?
 
Some info copied and pasted from the sticky

Author(s): AROWANA_KISS
Images by: N/A
Edited, Arranged, and Referenced by Wiggles92

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Tilted (Overturned) Gill Covers

Cause:
This condition can be caused by fouled water which results from rotting food particles and excretions. The strong presence of ammonia (NH3), nitrite (NO2-) and nitrate (NO3-) can reduce the content of oxygen in the water.

Space constraint:
The arowana is needs plenty of nutrition & space while it is growing, or the gill covers may be affected and may tilt over.

Change in temperature:
The water in the aquarium should always be maintained at a stable temperature as the sensitive gills of the arowana can be affected when there are large temperature swings.

Symptoms:
Initially, the movement of the gill covers is irregular and breathing becomes abnormal. Next, the gill covers may become concave, and the edge may curl upwards causing the gills to be exposed in the water. Finally, the fish will constantly push its head up to the surface for air and will lose its appetite; this means the internal gills have become damaged and may even be infected with bacteria which affects the arowana's ability to breath which can lead to death.

Treatment:
Initial stage:
Perform a 20% water change immediately as well as every two to three days.
Increase the oxygen levels in the water and add coral sand to the filter media.
Secondary Stage (slight gill cover curl):
Follow the previous steps as well as create a strong current. There may be 50% chance of a cure without the need to operate.
Final Stage (tilted & hardened gill cover):
Surgery is required at this stage; it is recommended that you have a professional perform the surgery.
If you are doing the surgery yourself, then you will need to acquire & sterilize scissors, surgical spirits, gloves, a plastic bag, a rubber sheet, and waterproof fine sandpaper.
Transfer the arowana to a smaller aquarium that is filled 1/3 of the way full with water.
Fill the bag with the water from the smaller aquarium and place the arowana in it.
Administer anesthesia and ensure that the arowana is completely unconscious before operating; be sure to keep the arowana wet during the operation in order to avoid dehydration.
Use the scissors to trim the edge of the gill covers; use the sandpaper to smooth the edges.
Apply antiseptic medication to the edges; later on, reapply as need be in order to prevent infection.
Turn off all the lights on the arowana's aquarium.
Place the arowana back in its aquarium and allow it to regain consciousness.
The operation is considered to be a success when the cut portion of the gill cover regrows properly.
 
have had this problem twice now....

assuming that its not a bad case of gill curl, I would do heavy water changes ( 50% every other day or so ), increase the current in the tank ( ran three powerheads in my 210g ), and raise the temp ( currently running at 84 degrees in my tank ).

Now being that your friend just got it and it came this way, just make sure the water is the best that you can give it. And make sure your friend checks the pH of his home water.
 
have had this problem twice now....

assuming that its not a bad case of gill curl, I would do heavy water changes ( 50% every other day or so ), increase the current in the tank ( ran three powerheads in my 210g ), and raise the temp ( currently running at 84 degrees in my tank ).

Now being that your friend just got it and it came this way, just make sure the water is the best that you can give it. And make sure your friend checks the pH of his home water.
Mind I ask what advantage the powerheads do?
 
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