So I added a piece of Texas Holey rock I found in my basement, along with some old playsand mixed with black sand. I added a few DHG runners from my 10 gallon along with little bits of flame moss, 2 microswords and a piece of HC I found floating around.
I want to try either adding CO2 to the set up (using like on of the regular water bottles) or possible adding some shrimp or a betta. I know the CO2 would be too much for the shrimp because there wouldn't be any other aeration besides what the plants provide, but could a betta be ok with the co2 since it breathes air? (I'm also willing to abandon the idea of co2 if you guys think its overkill).
Also any ideas on what I could improve on?
Here are some pics from 2 different sides of the jar:
The mist at the top are tons of little air bubbles (coming from the sand).
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