Neon Tetras Disappearing

[Nicholas16]

About a month ago, I put about 20 neon tetras in my tank. Now I have none. I have seen any corpses floating about. The other fish in my tank are all fairly placid. I have a couple of 3 inch redcap goldfish, 2 4 inch telescope black eyed gold fish, some small plecos, 3 silver mollies about 2 inch, 3 sword tails about 3 inch, some black widow tetras, 2 Corey's . Anyone any idea what makes them disappear?

 

[Blough]

I once lost a neon tetra and the common pleco ate the body. Maybe they died and your plecos are eating the corpses before you get a chance to find them.

 

[NickAu]

 
2 Corey's

You need more corys, 6 is the minimum, They are a shoaling fish, 10 is better.
 

 
Anyone any idea what makes them disappear?

Sounds like you have well fed plecos, What kind are they. Some Plecos grow to over 2 feet long.
 
How big is your tank?
 
IMO
 
You have Tetras mollies gold fish sword tails in a tank, this wont work, as these fish require different water conditions.