Could SMB handle highly fertile waters but you just don't find them in them because of competition with LMB? Whereas without LMB being presnt to outcompete the SMB, the SMB would do fine in fertile waters where clarity is less than 2'? In other words, it's not the fertility and subsequent occasional DO crashes that keep the SMB out but rather competition from LMB. In lakes, you generally can't keep them LMB free but in smaller ponds, you can.
I just wonder how DO and temp sensitive SMB are at different sizes. I do believe larger SMB are far more senstive to low DO than small SMB. One may be able to grow SMB in highly fertile waters up to a certain size at which point they become far more suceptable to fish kill from DO crashes, much like comparing small HSB to large HSB. However I don't think the DO needs are as extreme in SMB.
