What The Heck Happen Last Night

[hhosurfer]

I have three very docile mollies 1 male two female. 1 Male Cross Breed Mickey Mouse Platy. (need 2 females), 1 Catfish, I added 8 Neon Tetras about 2 months ago I have had no issues. I added 3 Ruby Nose Tetras, 1 month ago, Still no Problems.

2 weeks ago I added 3 male Guppies.

Last night I have no Idea what happen. Turned off Aquarium Light @ 9pm

Woke up @ 5:30am 1 Guppy, 2 Neon Tetras are dead. Tales are missing,

And a ruby nose is now pink and hiding in the corner.

Looked like a fight broke out over night. Is it possible.

I know the mollies never chase the smaller neon's and guppy.

Could the guppy and neon's be fighting?


55gallon tank with 10gallon sump / filter

 

[Warehouse]

What are your water tests showing? It's possible that the fish could have died due to poor water and were nibbled at during the night after they died.

 

[hhosurfer]

The guppy had nips on tail.

I just did 15% water change on Sat.

Cleaned larger filter on Sunday.

I must purchase a new test. I stepped on the glass container and broke it. (yes I know)

But there are no other indications of stress or trouble fish are all out doing their thing. And all where playing before I shut light.

What are your water tests showing? It's possible that the fish could have died due to poor water and were nibbled at during the night after they died.