Set my lights to 55cm above the plants what is even going on in your grow though? that's what I want to know because i ended up running out of SWAMPMONSTER juice, not to worry , all is okay getting some just in time for flower.. what i love about this stuff is you can feed it, spray it, dilute it or not, it will never harm your plant in any way , you could pour out a 5000 dollar wine bottle of this stuff over your plants and they would thank you... i miss it already, still though like i said any amount of exposure will result in lasting benefits for example growth's vigor as you can see in the pics ! C99 is the one closest and to the right....