I've never used it but I just looked it up. Looks like its a super soil. Looks like you may be able to simply water throughout the cycle and be good. The soil should have enough nutrients in it to last you throughout the grow. Although, I've heard of some super soils that don't actually last all the way through flower so just keep that in mind.
Thanks I have one more question idk if you ever used Sohum soil but do I need to top it or anything or do I really only Need Ph water and. That’s it ?