so instead of my original plans to get a 16 gallon IM nuvo nano tank, it looks like that tank may be off the radar, leaving me with my 5 gallon fluval spec V. 1/3 the size of the nuvo. only reason I can use this is because we already have it, otherwise that would also be a no. how much of a wild ride am I in for if I attempt a 5 gallon pico reef here instead of trying very hard to get the 16 gallon instead??