Do fiddlers! But 10-15 is way too many. o-o Well, 10 should be okay. More females than males. I love the darn things, never got around to getting them.
Crabby, I get that cystic stuff too.. Not anymore but it may come back soon since I've been off acne drugs for a few months.
Water lettuce, lol. In case you guys are curious- bladderwort is the only carnivorous aquatic plant. And yes you can have it for your aquarium, because I know a few people on TFK have it. Won't eat your fish, maybe some tiny fry, but mostly microorganisms.
Those little round things on the bottom half are the trapss.
(Sorta big imagine so here's just a link)