This might not be the right section for this but I have a 5.5 gallon low tech tank that I'd like to do a big overhaul of. I just have a few cherry shrimp and a mystery snail in it. I also have a bunch of crypts, jungle val, java ferns attached to small pieces of cholla wood and some dwarf sag. It's terribly over grown and I'd like to thin it out and rescape it. I also would like to change the substrate. I was wondering what people think is the best way to go about such a big change. I'm leaning towards switching to fluval stratum substrate. Any ideas on how to safely collect the shrimp or on anything else I might be missing?