Newbie

[Bect73]

Hi I am Bec, I have 3 goldfish in a 4 foot tank with zebra danio and white clouds. My goldfish are 20cm long. Big boys ? I am still learning everything about my fish, tank and food, filters, plants etc.
I am wondering if a white cloud will eat one of his mates? I gave 2 of mine to a friends daughter for Christmas but now there is only 1?? What could have happened to it??
If I knew how to add a photo I would.
Any advice much appreciated

 

[Aiken Drum]

Fish will eat dead fish, but i doubt 1 minnow could consume another one completely in a short space of time.

Is there anything else that might have eaten it? How long has it been missing? Could it have jumped? Might it have been sucked into the filter? Might it be hidden or got stuck under anything?

Was the tank you moved the 2 minnows to cycled or are they doing a fish in cycle?