Feeding at flip...nitrogen, calmag, fox farms trio powders

Indoor Growing
1

Hi, i’m stuck in classic over think mode with many opinions out there. i’m trying to figure out feeding details for flowering for my details (see below). plan to flip on saturday. plants will be due for a feeding.

  • germinated 2 seeds purple urkle x cinderella 99 on 2/15/2026
  • mainlined one to 8 mains and one to 4 mains
  • been feeding 1/2 strength alaska fish, 1/2 strength liquid kelp, 1/2-full strength calmag
  • did some pruning ahead of flip
  • plants look great. only issue is a little floppyness on one main on the 4 cola plant (i think i over did it with LST and a 180 degree bend)
  • king plus 1000w (actual <200w) with veg and flower turned on
  • ac infinity exhaust fan vented to old/unused hot water heater 6" vent to the roof
  • promix bx in 7 gallon grow bags with large perlite
  • i have the fox farms powder trio (open sesame, beastie bloomz, cha ching). no tiger bloom or any liquids other than my fish, kelp and calmag

questions for flip:

  • straight water flush or not? soilless promix bx
  • start open sesame immediately (1/4 strength) or wait a cycle?
  • keep alaska fish for nitrogen, and phase out over how many weeks?
  • keep kelp and calmag throughout? what strength?
  • should i alternate feeding with straight water?
  • alternate feedings with and without fox farms powders?
  • when should i switch from open sesame to beastie bloomz and then to cha ching

notes: alaska fish is 5-1-1 full strength 1 tbl/gal; kelp 00-1 2 tbl/gal; calmag 1 tsp/gal; open sesame 5-45-19, beastie bloomz 5-50-30, cha ching 9-50-10

sorry for all the details. just trying to anticipate questions. thank you!

2

If you haven’t been using fox farms liquid nutes you can probably skip the flush. You can begin with open sesame right away. Keep going with the nitro but skip a week between each feeding. I would switch to plain epsom salt and ditch the Calmag from here on out. Around 1 tsp per gallon, just make sure to dissolve it completely before adding any other nutrients. Run the sesame for 2-3 weeks and switch to blooms for the same amount of time. Then just run chaching when you feel you’re about 4 weeks out.

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thanks for all the answers! i’m amazed how well the plants did thru 3.5 months of veg with only alaska fish (never more than 1/2 strength), liquid kelp and calmag. epsom salt? calcium not needed at this stage?

anyone else get carried away using toppings for clones? its easy with clonex and a homemade humidity dome.

thanks again BD.

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4

The fox farms dry nutes should have enough calcium. I never ran into a calcium issue using them. They were always magnesium deficient. Although I did use the liquid nutes with them. You could probably stick with the calmag but even with calmag and the liquid nutes the plants would get deficient in magnesium. That’s why I started using Epsom and eventually stopped using fox farms.

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