Fish Died But Why?

[philfista]

Hi all,

Strange thing happened today , my black guppy died suddenly. Got up in the morning and he was tail up , bloated and covered in silver blotches .

Anyone know what it is???

 

[Little-Fizz]

Whats your water parameters? Size of tank? Tank mates? Do any of your other fish look ill?

 

[Tokis-Phoenix]

You need to give us more info on your situation and the circumstances surrounding the fishes death like Fizz has asked before we can really help you .

 

[philfista]

Sorry all been busy.

O.k my tank is 180 liters.

Ammonia 0
Nitrite 0
Nitrate 20

Fish: plec, 3 zebra danios, 3 clown loaches, 3 tiger barbs, cory, spoted catfish , ammo shrimp, 2 walking catfish, 1 talking catfish. one vert naught convict Cichlid which i took back to the shop.