I have been using about half of the light mix, growing in my own mix of soil and vermiculite. I found that using the full dose is too strong, one plant has shown some slight burn on half dose.
Also I've discovered recently biobizz don't add any salts to their nutes, (or at least the ones I use) so you need to add epsom salts about 3 weeks into flower to help prevent mg deficciency. (check if the fishmix or algi-mic has mg)