I am new to using Sunshine #4, and I am having some major problems. I am experiencing some cal, mag and iron deficiency. My pH going in is 6.3, but my runoff is at 4.9. What should I do to get my pH up? I just did an experiment and tested the runoff of #4 with pH of 8.0 going in, runoff was 5.5.

Any suggestions?
skitze Reviewed by skitze on . sunshine mix #4 i want to add some more perlite and vermiculite to the mix what ratio do you think i should use? i want to keep it simple i just want to feed with liquid nutes.does anybody have any suggestions with the sunshine #4. Rating: 5