Would this work

[BoabMac63]

120g fishtank 4 convicts no they r not a breeding pairs 4 firemouths 6-10 tiger barbs and 6 clown loaches

 

[Inglorious]

I think the tiger barbs would slowly disappear unless they had a good hiding spot that the rest can't get to

 

[probassfisher010]

If you get large mature 2"+ tiger barbs, then yeah. And how do you know no breeding with occur with the convicts, 4 males or 4 females or something?

 

[BoabMac63]

1 male 3 females but hav had them for ages and defer laid eggs