yes. And I see somed people who post in red cherry who hace crystal reds or cardinas. I think the sub fourms should be renamed to neocardina and cardina respectfully. they are completely different setups. I would argue that neos is the preferred choice since most people won't have a RO filter in their house, or will want to buy RO water at the store just for their fish tank.richie.p said:It also depends on what type of shrimp you want to keep as some have different needs.