I lost 2 Angels in almost 2 months. Earlier today I noticed a third acting odd. Now tonight he seems to be following the same pattern the other 2 did when they were on the way out. Not active or swimming staying in one place at the surface, no reaction to food, head facing upward, tail is not flared but almost closed or 'pinched' together. This was our first Angel my son will be so upset if we lose it. We've had him since the end of May. Always greeting us at the glass. Now, just stays in the same spot looking towards the top..
My water reading:
Temp: Steady 82
Ammo:0
Nitrite:0
Nitrate:40
Hardness:300
Alkaline: 40
pH: 6.8
Last water change ( 30%) 2 wks ago,
Any idea what could be wrong? Is there anything I can do?

My water reading:
Temp: Steady 82
Ammo:0
Nitrite:0
Nitrate:40
Hardness:300
Alkaline: 40
pH: 6.8
Last water change ( 30%) 2 wks ago,
Any idea what could be wrong? Is there anything I can do?