I have just got back today and checked in on my fish before bedtime and found that two of them have died and the other is on the bottom of the tank looking VERY sad.
There have been no symptoms feeding well yesterday all fine this morning and then died. My last one is really looking quite poorly very lathargic no moving breathing rapidly, I really have no clue as to what is the cause. I have done a 10 litre water change and added some Liquisil General Tonic as I don't know what to specifically treat.
Any ideas would be most welcome.
My Stats are Ammonia 0 Nitrite 0 PH 8.2 (always has been) and Nitrate between 30, I have a Juwel Rekord 60 whioch is 54 litres, I think that's 12 gallons??
There have been no symptoms feeding well yesterday all fine this morning and then died. My last one is really looking quite poorly very lathargic no moving breathing rapidly, I really have no clue as to what is the cause. I have done a 10 litre water change and added some Liquisil General Tonic as I don't know what to specifically treat.

Any ideas would be most welcome.
My Stats are Ammonia 0 Nitrite 0 PH 8.2 (always has been) and Nitrate between 30, I have a Juwel Rekord 60 whioch is 54 litres, I think that's 12 gallons??