I finished getting my first planted tank set up. It's a 10 gallon low light, low tech tank that's moderately planted and has a large piece of driftwood in the middle. I currently have a colony of about 10 adult cherry shrimp and more juviniles than that (no idea how many but there are plenty of them). I've always loved the look of CPD's and would love to have maybe 10 in this tank? I've read a little about how CPD's can eat the juvinile cherry shrimp so I'm wondering how much will having CPD's affect the size of the shrimp colony? Will it be noticable? Will my shrimp start hiding a lot more with the CPD's in the tank? Where is the best place to get CPD's? I saw this auction on aquabid and it is probably my favorite source so far http://www.aquabid.com/cgi-bin/auction/auction.cgi?fwcyprinids&1368088818, anybody else know of a better source, maybe a seller here? I would much prefer CPD's but is there something else that would do better like ember tetras? Thank you, sorry for all the questions.