Is there anyone with experience with the soil and ...

Hello @Chewbacca ! Nirvana flower tabs are like biotabs (that i am currently using). They have a mix of macro nutrients humic acid and trace elements. The only difference is that bio tabs claims to be organic and nirvana i think not ( although as far a i know flower tabs are also organic but they just don't have the organic certification ). They releasing nutrients slowly and believe me they are great. I have seen growers with zero knowledge having great results and easy. Especially in combination with autopot. Have in mind that these tabs works even better when you use compost teas. The microbes from the compost tea helps the amendments ( that these tabs have ) to decomposed to available minerals for the plant. But be careful . You have to transplant the plant to the soil that contains the tabs at around week 2-3 because these tabs are heavy for young seedlings and you can start the compost teas at flowering stage. Happy growing ! 👊