Sounds to me unless his temps are real high that HSB would be his best bet. He can get them a bit larger they don't spawn like other fish would then you have small fish from other fish as well as minnows getting caught in the filter.... He doesn't sound like he care about fishing really....

The only thing is eventually like Esshup said the HSB may end up starving....... or being very skinny but once again if quality of fish and fishing is not a concern still his best bet to go with HSB.... If he can and he can get them....

RC

The only difference between a rut and a Grave is the depth. So get up get out of that rut and get moving!! Time to work!!