Same original colony no additions on either side.
No survivors that I can see, no deaths yet in red side.
Pool filter sand, piece of cuttlebone, Marimo Ball, Java Moss & Feeding Dish. All has been there since day one. 40ppi foam block under glass divider allows water exchange, no forced flow. Same on both sides.
Every week, I do a water parameter test on alternating side, I siphon 2.5 gallons of water from same side, do any necessary cleaning on both sides, refill to same side through 3/16 inch diameter airline tubing, 1/2 scoop of Bacter AE premixed in tank water & add 2.5ml of Flourish to each side from same dropper. Very first time I did a water change (28 weeks age) , I poured the water in and had 3/4 die off.