I am gong to set up a lido 100 soon. i am thnking. iam going for a old ehiem 2217 for a filter, as i have two on my old rio 180. I had to take up my rio 180 as the other half wanted a new carpet. my rio is too big for it new home so going back to a good old lido. need to sort some lights, would like some T5 but thet are pricey. i only had T8 on the rio, but it did ok. i will post a picture at some point. do you have T5`s??? let me know how your setup goes!