20g L progression Journal
10 Bloodfin Tetras (the yoyo loach chased 2 of them around so much they jumped out a small gap in my tank and died on my floor while I was at work -_-)
6 Peppered Cories
1 yo-yo loach (his friend was an and was going to return him to store for a different one but he decided to off himself first...)
4 Nerite Snails
1 Paradise Gourami.
Substrate is eco complete yes, with some normal black sand in the center there. I used to have all eco complete but decided to add some sand for the loach and cories. Honestly I would keep them in as natural of substrate as possible (so sand). Only reason I went with eco complete initially was a) it's nutrient rich for my plants and cycle, and b) it is so light that I didn't think the cories would have issue sifting through it, and they don't, however, despite how light it is, it is a 'rough' gravel, so I wanted to provide them with an area in the tank that was nice and soft.
If you want to bank your substrate, i'd do half and half. use gravel for the banking (along side either large rocks or media bags to prevent gas build up from deep substrate) and then sand everywhere else P: