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Hi Everyone, I am new here and fairly new to the world of freshwater shrimps. One month ago, I decided to start-up a shrimp tank using my old 20 gallon aquarium. I started working on DIY stand and buying aquarium items (black sand, sponge filter, cholla wood, alder pines, and almond leaves). Now, the tank is in cycling process. My plan is to have caridinas (Blue Bolts<-definitely and Tigers <- don't know yet which type) and Neocaridinas (red cherries and blue dream). I am debating if I should purchase a RO system or just buy distilled/deionized water from somewhere (e.g. Walmart). Capital cost for 20 gallon distilled water should not break my wallet. However, operating cost might be - water change. I don't know how often I would need to do water change for a 20 gallon shrimp tank. Assuming I would do 25% water change, that will be 5 gallons of water. On the other hand, I do weekly water change for my 75 gallon freshwater tank. My 20 gallon tank is currently have dechlorinated tap water. I don't want to blabber to much. I kindly ask for your opinions and advice. I made few mistakes before being cheap and I want to make things right this time to prevent wasting time and spending more money due to mistakes.

My tank is almost cycled and i'm going to be purchasing some sort of cardina (most likely crystal reds). If there is a one and only shrimp food to feed them, what would it be? This is my only tank for now. Possibly looking to expand later on, but for now its a just a 10 gal cardina tank. In the tank there will be Marimo Moss that I flattened out to be a carpet, some subwassertang and ill be adding some cholla wood that i bought already. Thanks!