Probably not the best idea to go with an UGF in a planted tank. For a 20-25 gallon, you may be better off going with a small canister filter, or good HOB that disturbs surface tension as little as possible.
Popular substrates are ADA Aquasoil, EcoComplete, and Flourite. Others are laterite and soilmaster select. Doing a search on here and looking thru the substrate section will give you tons of info. I really doubt you need the UV sterilizer, unless you're prone to really bad green water or disease outbreaks.
Keep in mind that most shrimp are sensitive to ammonia and nitrates/nitrites, and do best in an established tank. You may be better off starting off with some hardy fish and a couple ghost shrimp until things get rolling, and then move on to amanos and cherries, and work your way up to difficult shrimp from there. Good luck!
Popular substrates are ADA Aquasoil, EcoComplete, and Flourite. Others are laterite and soilmaster select. Doing a search on here and looking thru the substrate section will give you tons of info. I really doubt you need the UV sterilizer, unless you're prone to really bad green water or disease outbreaks.
Keep in mind that most shrimp are sensitive to ammonia and nitrates/nitrites, and do best in an established tank. You may be better off starting off with some hardy fish and a couple ghost shrimp until things get rolling, and then move on to amanos and cherries, and work your way up to difficult shrimp from there. Good luck!