Hi. Its me again.
I did eventually end up euthanize my gar. It was not eating, its back was severly damaged both vertically and horizontally and it barely moved around.
The reason why im posting again is that my worried about my other gar that has been all fine and well until it stopped eating 5 days ago. I finally got it to eat something else than shrimp and its been feeding on cod filet which im giving it with a tong. Has worked nicely and the gar has been eating well and grown alot. It is extremely sensitive to changes in the tank tho. After a water change, it doesnt wanna eat first day or two even tho there should be minimal difference in tp. I did cave in and gave it som live feeders thinking it was nice for "him" to eat bones, skin, intenstines etc rather than only filet. However, my gar didnt eat a single feeder and until i removed them again, it didnt wanna eat anything really. I slowly lowered the Tp to 20 degrees C since i read it requires 15-20 degrees, but it stopped eating and didnt eat until it was back to its usual 24 degrees. But all in all things has been stable for months now.
Now its not been eating for 5 days which is a concern because i cant figure out any obvious reasons for it. It seems to want food, but as soon as its close enough to grab the food, it looks like he gags or swallows really heavly. Then it swims away. The fish who died also did the same, so im kinda worried when i see the same behaviour. This one tho has no external injuries or shows no signs of discomfort beside its not eating. Is it possible it can be constipated due to filet only?
I know it wont die from not eating for 5 days, but he has been eating well every day last 5 months so a sudden change isnt a good one.
The water parameters is:
GH 5
NO2 0,01
NO3: 0
pH 7,4
Tp 24 C