:P neons imo are boring ^^! Im saying this not to insult your tank because its so beautiful...but since we're both petsmart fans, cardinal is the way to go!! :P I was lucky enough to get my hands on 7 cardinals for a buck each ^^. Im pretty sure thats how much u paid for your neons as well, if not ouch!
Only down side, petsmart wised up, their dollar sales usually dont include cardinals anymore

and not to mention the dollar increase on them!
HC is growing very well for you! I just got my hands on some and cant wait till they do the same

very impressed with the growth via LEDs

cant wait to see them fill in for ya ^^
Im sure he meant Cherry shrimp :P its the cheapest good looking shrimp around...where to get them? go to the sale forums...last i check some guy was selling it pretty cheap. in my experience u can put a ton in that tank and they would do fine assuming water parameters are right.
I cant speak much for cherrys tho because i have a colony and a few of them died off and im not sure why. But for whatevers left in the 5 gallon javamoss tank they're doing pretty well

biggest cherry ive seen was prob around an inch, but no bigger...if u get it locally at a petstore they will prob charge u atleast 3 bucks a piece...forums usually 1 buck a piece :P