I am not the expert to answer this, but choosing which bacteria and enzyme to use is really hard. There is seemingly no industry standard and you really must trust your supplier. That said, using one of the advertisers in Pond Boss Magazine is likely as good a reference as you can get as they do not just accept advertising with anyone. I just would not buy any of these products based on advertising talk. Finding someone who has used something successfully would be the best advertising.
HOWEVER, from what I have read using any of these products without aeration has not been demonstrated to produce good results. Since bacteria type products are relatively expensive, I think, that if I did not have aeration, I would save my money, get aeration, see what results you get from that for a while, and then look into additives.
