HELP need nutrient advise foxfarm

Hello, Im on my 2nd grow now. Im growing 2 plants in 5 gallon coco 2x 300w mars LED with 2 week veg and its in 6 week flower now. Ive been noticing that the buds are still pretty small in week six. i did some research... Then i realized that ive only been using Fox Farm big bloom along with cal-mag(micro nutes) the whole time instead of TIGER BLOOM (macro nutes). So my question is can i fix this by getting the tiger bloom? What should my feed schedule look like? ... One more thing, I have 2 clones from each plant. they are in week 2? I think... Growing under 1 23w CFL each, can i have advice on feeding schedule for these guys too. THANKS