multiple strains in one hydro bed

Hi, I was wondering if anyone growing multiple strains all in one hydro bed all on the same nutrient formula finds that some plants are maybe robbing more of what they need from the formula and therefor some other strains are not getting that and are not doing as well.

so lets say it would be a 4x8 tray 100 gal res and 5 rows of different strains.

thx for your opinions.

I've done that, it's maybe not that some are robbing others more so than some having different nutritional needs, and/or tolerances

The only way one strain could be robbing from the others would be if you were filtering your solution through that specific strain. Example - if you fed one plant - then used the run off to feed the next and so on. As you are flooding all the strains at the same time - they can all take what they need.