One setup is an clone with top drip to dwc, 4 plants in a rubber made, thew other is in 10l buckets with black lids, about 2cm of water stays in the bottom after feed and the rest returns to the res.
I think podzyne or greatwhite is what im looking for.
Thanks
Just be careful adding anything with an enzyme directly to your res. They can contribute to slime outbreaks as youre feeding both the bennies and the nasties. Thats why brewing a tea is so widely recommended, you get the benefits of the good bacteria without contributing to the bad bacteria.. Plus, $15 of myco and $15 of ewc can last you a few months or a few years more depending on use. Tough to beat with store bought products.
Bennies don't actually do anything directly to the plant that will increase your root growth though, rather they prevent problems that will slow down your root growth or worse. So definitely a good idea to use, but if you already have healthy roots and a healthy plant don't expect any overwhelming improvements.
I think you have the right idea, a higher P food will increase the plants potential for root growth, but I would still advise caution when using a high P food . A proper balance is more important and more beneficial than an emphasis on one area of nutrition for one area of physiology. All the root growth potential in the world won't matter if the plant is starved for N or you get a lockout of micros.
Indole-3-butyric acid is a developmental hormone that contributes to root growth. You could look into supplementing with that too, I've never gotten far enough into it to really understand specific mechanisms or applications.
