Yellowish leaves

Pro-bloom is a flowering supplement, it is not a fertilizer in its own right.........hence, your plants are starving! You need to get a bloom fertilizer, like "Pro Organic Bloom" from Terra Aquatica to use as well. The seaweed product and silica supplement you are also using are just that, supplements, and not fertilizers either.

Hi Dwonzal, My understanding of the Terra Aquatica TriPart is that you need to use all three parts - Gro, Bloom and Micro - throughout the grow. Gro contains higher nitrogen, Bloom has higher PK, and Micro contains the secondary elements like calcium, magnesium, iron, manganese, etc. It looks to me like you have a few deficiencies which is probably caused by the lack of Gro and Micro nutrients from the set. You're only using Bloom, and then two additives. I'm sure they're all great at what they do, but you're missing two key building blocks, hence the problems. If you can complete the set and feed the recommended dosage, I'm sure it will stop the spread and they'll recover. Good luck!

It just looks like it's not enough for these ladies. It's always good to go by recommended instructions for feeding plants at first but not every pheno is going to respond the same way. Point in case...your plants. I recommend increasing the feed because it's definitely an everything deficiency. N-p-k. Hope this helps

Unfortunately, I don't know what fertilizers you're using, so it's hard to help you properly. In the meantime, it seems to be chlorosis or yellowing of the leaves, basically, they can't produce chlorophyll. The causes can be excessive watering, lack of water, wrong pH, nutrient lockout, or some deficiency. There are also other reasons, but they don't relate to your case. The pH seems to be right... You need to assess the excessive or insufficient watering; you can tell by checking the soil. If it's still wet when you want to water, don't do it—let it dry out properly. If it's dry, you need to increase the water, but if you're giving 8 liters every 24 hours, that's not your case. You need to check the nutrients yourself unless you tell me what fertilizers you're using and the amounts ;)