Total tear down and rebuild: 37g

I would think that having a larger group of mixed corys would keep them more comfortable than an undersized group. I've never tried it though.. I currently have 7 panda corys in one of my tanks and 6 juili in another. I've had them about 2yrs. Cute and active little things. They've all stayed small. I feed them sinking shrimp pellets after dark to minimize the other fish getting the pellets first.
 
I would think that having a larger group of mixed corys would keep them more comfortable than an undersized group. I've never tried it though.. I currently have 7 panda corys in one of my tanks and 6 juili in another. I've had them about 2yrs. Cute and active little things. They've all stayed small.
 
Panda Cories are one of my favorites but among your most recent list I'd choose juliis, simply based on look. Large mixed groups can make cories feel comfortable but not truly happy, much better to go with as big of a group as you can of the same species. They will thank you for it and you will enjoy them more too cause they will be more confident, active and interactive with each other. I still dream of a HUGE school of habrosus cories!
 
Go with 8 or more if possible.
 
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