And i used the tourmaline/power sand S because they compliment each other. The tourmaline helps energize the substrate for the bacteria, the power sand s comes with peat/lava rock and things to help buffer the water as well as Clear Super and Bacter 100. My objective there is having as much beneficial bacteria as possible in this tank for all the shrimp, and proper water conditions. So far so good. Plus I still have plenty of tourmaline left, and the power sand is relatively cheap.. Not to mention that I quickly found out I didn't buy enough aquasoil for this tank originally even if I didn't use it for shrimp breeding so I'd have to buy more anyways.
Substrate from bottom up is tourmaline-bc, PowerSand S, capped with Tahitian Moon black sand. I didn't have time to try and cycle any aquasoil and my goal was high biological filtration, not growing plants(all I have is moss). It's worked out nicely so far.
Ah! Lost a bkk this morning I really think it was done in from the 6day shipping and the doa it was in the bag with.. Like the damage was already done type thing as he was lethargic from the get go and the other two get around a lot and are acting normal.. Plus the shrimplets are all fine so yeah.. I ended up changing out the biochemzorb for a new package, and added nitrazorb as well. I Also dumped in a full small bottle of tetra safestart, and I'm dosing iodide now as well. See how this goes, everyone has been out and about acting normal so I'm pretty positive everything is good, better safe than sorry with these guys though.. Gotta have everything *perfect*.. And I *have* to before these other 4 get here around the end of the month.. so far so good ^^