Should I add nutes? wk#6 La Diva

400 w HPS, Roots Organics Soil, Auto-Flower, Week 6, Day 43, I got some yellowing of leaves at the bottom. This is the first time I've tried to grow and so far I have had success, I love how big this plant has gotten. I have a couple of bottles of different nutes when I ordered my "complete grow kit" from HTS Supply. Here is a list: Roots Organics Budda Grow, Roots Organics Budda Bloom, Aurora Innovations Soul Synthetics Plant Super Charger Amino Acid 5-0-0, Soul Synthetics Big Swell, Roots Organics Trinity. All these bottles are confusing me. I need some expert guidance, any questions you have I can surely answer! Thanks !!!

Give it a 1/2 dose of grow and 1/2 dose of bloom nutes every other watering. Slowly increase bloom nutes and slowly decrease grow nutes. You can also add the amino acid to the mix. Then about 4 weeks before harvest add the big swell for two weeks. In the last two weeks flush with plain water.

Make sure to pH balance your nutes solution.

Give it a 1/2 dose of grow and 1/2 dose of bloom nutes every other watering. Slowly increase bloom nutes and slowly decrease grow nutes. You can also add the amino acid to the mix. Then about 4 weeks before harvest add the big swell for two weeks. In the last two weeks flush with plain water.

Make sure to pH balance your nutes solution.

I have another question based on the timeline of nutes you presented, I'm in the last 2.5 weeks of the growth cycle (autoflower) so should I just pick up where you start mentioning big swell? Or should I start with the half doses of grow n bloom?

Based on the pictures I think you have a little more time to go. Those buds are very young looking. I would go at least 3 weeks. You can dose it once or twice with bloom and big swell.

Based on the pictures I think you have a little more time to go. Those buds are very young looking. I would go at least 3 weeks. You can dose it once or twice with bloom and big swell.

Ok I'm gonna feed it tomorrow and I'll give her a dose of bloom and big swell. I have another question, can I use a pH tester, like the kind they test pool water with? I can't afford a digital one at this time. And do I test the runoff or the water b4 I add it to the plant? Thank you for your wisdom!

Are you talking about those strips? You can use those, but they are not as accurate as liquid ph test kits or digital ones. But it will give you an idea what your pH is like. You should test the pH of your nutes after they have been mixed with water. Your solution's pH should be around 6.3 - 6.5. Testing your runoff pH is also recommended.