gold fish in a community tank?

[mitcore]

can you put gold fish into a community tanks
say for example my 3ft?
with what is listed below?
just wondering my kids want one but i am not sure if i can

also they currently have a betta tank in their room
with a male betta and 1 bristle nose
is it possible to put one in there with the betta

thanks

[Drumachine09]

What is your waterchange schedule (%/frequency), and your filtration?


Also, Plecos and bettas are tropical fish, and should not be kept with coldwater fish.

[mitcore]

i know that, the betta tank has a very good filteration and heater plus light,
my water stats are as followed

betta tank

same water stats as 3ft

3ft

150 hardness
7.0 ph
0 ammonia
0 nitrites

4ft

89 hardness
7.0 ph
0 ammonia
0 nitrites

external filters on both cant remember how big
but they are bigger then needed

i do a water change every week about 40% each time with a good gravel clean

[Drumachine09]

Once again, I need the name of your filter (brand/model).

Water parameters are trivial if you don't have sufficient filtration.

[mitcore]

aqua one cf 1200 for the 4ft
aqua one cf 500 for the 3ft

[cocoa_pleco]

goldfish cant go in community tanks. theyre coldwater and their best tankmates are weather loaches.

even the warmer water tolerating goldfish wont work, most slow moving ones will get their fins nipped

[mitcore]

ok thanks i thought i would ask anyway
i thought that might have been the case