Which Fish Ate My Neon Tetra?

I noticed a couple of days ago that my neon tetra wasn't swimming in his usual spot. I searched the tank but didn't see him so I assumed it was hiding. I just cleaned the tank and removed all the decorations but it's nowhere to be found. In my tank I have 2 mollies, a gourami, and 4 bloodfin tetras. I had four other neon tetras but they all died about 3 weeks ago. It was the lone survivor but none of the other fish ever bothered it. Do mollies or gouramis normally eat neon tetras?

 

I think it depends on the size of the neon and the size of the gourami. The mollies almost definitely didn't do it. They'll eat fry, but I doubt they'd ever be able to eat any neons that were big enough to be sold.

Depending on the kind of gourami, it's possible. If it was a young neon and a larger gourami, I can see it happening.

 

Seeing how you had 3 others die, did you find their remains? Sounds like sick neons. How long has your tank been setup/cycled?

 

If the neon passed all the other fish would have chowed down, sometimes before the fish has finished dying.
I'd check around open portions of the hood and on the floor as well as in the filter for any remains.

 

Seeing how you had 3 others die, did you find their remains? Sounds like sick neons. How long has your tank been setup/cycled?

The tank has been set up for a few months and has been fully cycled. I bought the neons before I knew how fragile they usually are. The others died overnight after I bought them and I removed them.

If the neon passed all the other fish would have chowed down, sometimes before the fish has finished dying.
I'd check around open portions of the hood and on the floor as well as in the filter for any remains.

I vacuumed the tank and removed all decorations. I found no sign of remains. I don't plan on getting neon tetras again.

 

Honestly it could have been anything. A larger gourami most certainly could eat one, but we'd be talking a pretty big one. My guess is it jumped out and you haven't found it yet (been there done that, found the fish in another room across the house months later), died and got eaten/any pieces left got sucked into the filter.

Neons are a pretty small fish so any of these are possible

 

It could be another fish, or it's possible that because of an illness, the neons all passed. It happened with my RNT recently. If there was no body found, there is a chance other fish may have pecked away at it. I had one of my RNT completely devoured (I assume after it died at night).