Angelfish has black spot above eye and become lethargic

[Bryony]

Hi .

I’m getting quite worried about my platinum angelfish . I’ve had her for about 6 months . All of a sudden she’s barely eating and shying away in a corner. All I can see visibly is a black spot above eye and a greyish patch I’m centre of body.
Any advise or help with regards to this will be greatly appreciated.
Please see pictures attached.

 

[Aiken Drum]

Please take a read through the "unhealthy fish" sticky and provide as much detail as you are able.

https://www.aquariumadvice.com/forums/f17/before-posting-about-unhealthy-fish-read-this-32451.html

 

[Bryony]

Please take a read through the "unhealthy fish" sticky and provide as much detail as you are able.

https://www.aquariumadvice.com/forums/f17/before-posting-about-unhealthy-fish-read-this-32451.html

Hi

Please see below answers to questions in the link you provided.
1) tropical platinum angelfish. Has a black spot above eye , grey patch on body , acting strange and barely eating.

2) Tank parameters are P.H 6.8, ammonia 0ppm , nitrites 0ppm, nitrates 0 , temp 26.4 Celsius .

3) tank is 250 lites , set up for 10 months

4) filtration - Fluval 307

5) currently housing 5 angelfish , 10 rainbow fish , 1 red tail shark , 2 mini pelcos.

6) last water change yesterday . 50% water change every week with vacuum of gravel.

7) had fish for 6 months

8) not address anything new to tank

9) food is a mixture of flakes and granules with added vitality and garlic guard . Also feed frozen brine shrimp.