Random peacock gudgeon death?

[wtusa17]

I went to feed my fish and when I looked in my 29 I noticed a dead peacock gudgeon. I had 2 in that tank and I have another 2 in a 20. Is there any explanation for this? They have been in this tank for at least a month now and I’ve never seen anything pick on it or it be aggressive to anything else. Could it just have died at random? It was eating yesterday and was active too.

 

[JuiceBox52]

What are your ammonia nitrite and nitrate levels?

 

[Retired Viking]

When a fish dies for no apparent reason the first thing we look at is the water so please provide the information @JuiceBox52 asked for.

 

[wtusa17]

What are your ammonia nitrite and nitrate levels?

I tested ammonia and nitrites and both were 0