Featherfin catfish with goldfish?

[Sync]

I have 2 29 gallon tanks and would like only one, 1 has 2 goldfish, 1 fancy 1 feeder, the feeder is decent size. My other tank just has a featherfin catfish. If the tanks are the same temp would there be a problem housing together?

 

[Sgooosh]

I have 2 29 gallon tanks and would like only one, 1 has 2 goldfish, 1 fancy 1 feeder, the feeder is decent size. My other tank just has a featherfin catfish. If the tanks are the same temp would there be a problem housing together?

the feeder will need to be rehomed into a big pond or a big tank 100g+ with some friends
if you would like to house them all together i just reccomend getting more synos and getting a huge monster tank with a lot of goldfish
for now, the tank is already too crowded and synos need 50g i read