Wow, Jeremy! This is awesome! You have great set-ups! Do you find that the dwarfs breed easily in the 15 gallons (30 split) tanks? I see you have hornwort in them, any other plants you can list for me that you have found to be good with soft water?
I will consider you to be my advisor on my dwarf tanks!! If that's ok? Maybe I can run some ideas by you. I have a 15g set up already, waiting for them to arrive, here is a picture:
This is mostly a holding tank, as I am working on the specs for a 29 for a permanent home. It has black diamond blasting grit for the substrate. I've been told it's supposed to be completely inert - well, not for me. It raises the PH considerably. I ran a water softening pillow in it, and have it down to GH 0, KH ~20, and the PH is hard to read... looks like about 7.0.
Here's the idea I'm toying with - let me know what you think - instead of using just the black diamond sand on the 29, using a layer of peat, and maybe a layer of miracle grow organic, then cap with the black diamond sand. I have tons of the sand left, so I'd really like to use it. I have NO money for anything else right now.
What do you think?