inert substrate

Hi guys. I am saving up to putting some good lights on my 325 liter aquarium. I already inject pressurized CO2 and will start EI dosing soon (lower doses since I only have a moderately planted tank and for the next couple of months low light). Anyway, I'd like to be able to grow some medium...

Figured I start a journal here to get more advice :D April 6th, 2017 Hardware Tank: Aqueon 135 Gallon 72.5" L x 18.5" W x 24.5" H Stand: DIY 75.5" L x 20.75" W x 32.75" H Filter: CPR 102 Overflow, Tom's Aqua Lifter, Using Visio 55 Gallon as a sump...

So this is a journal for my new 120, which replaces my long running 75 gallon. For anyone who followed the previous tank, this one will be basically the same style with just a bigger footprint. First planting, about 2 months ago. Tank 48" x 24" x 24" Marineland 120 gal CO2 GLA Grow 1...