Nutrient deficiency?

Hi, that looks like too much fertilizer to me. But to be sure, I would measure the runoff and check where your pH and EC values are. The pH should be between 5.8 and 6.5, and your EC should be below 1.8 at this stage of the plant. After that, you'll know if it was too much; if the pH is correct and the EC is well below 1.8, it's lacking nutrients. If it's too high, you need to flush with just water for a few days. Best to do it about 3 times with 2 to 3 days in between, or when the soil is dry. If the pH value is off, you need to adjust it.

NutrientThe nutrient balance seems to be fine; your fan leaves are turning a strong green, which indicates a high nitrogen content. Try to reduce it over time. Good luck!

watering system look insufficient.. odd pattern, uneven, insufficient. If relying on that probably getting some weird buildup wheher the moisture ebbs and flowsor worse not watering all the way down to the bottom. fertilizing isn't at echnique. just read and react and provide. the label on the product does not make it exclusively to be used in bloom or flower. those labels don't matter. the plant needs all the various nutrients at all times.. even if some are needed a bit less in flower, like N. This looks like too much food, not too little food, and the ratio is off a bit so it's going to slowly or quickly deteriorate as time continues to go by.

HI bud. The slightly yellow leaf tip, on luscious dark green leaves, is an indication she is on the edge of what she can process. So don't give her any extra nitrogen for the time being. She has enough. What were you hoping to achieve by giving her BioGrow? To give her more nitrogen? BioGrow consists of several minor nutrients and minerals, but not nitrogen. Other than that, your plant looks great! Hope you have fun with her on this run.

Bordering on nitrogen toxicity or already got nitrogen toxic, older leaves look to dark and shiny. Newer growth that's lighter looks better. Not used bio tabs before so don't really know how they work but I'd imagine you should only need water and just change tabs at set stages in growth. I'd only water it and not use any nutes yet.