Ok so I got a free 30ish gallon tank from a friend an Id like to start a shrimp tank. I bought 2 bags of Ada Aqua soil for my substrate. I'm trying to figure out what filter I should go with, I found a eheim 2215 an a 2217 used online or I'm thinking oh an hob. I'm not sure what would be the best option. Next thing would be what light to use, I'm leaning towards a iwagumi style tank. I'd like to have a carpet of Monte Carlo if that's possible since I know shrimp don't like co2. Any suggestions one equipment would be great.