Hi everyone, I have soooo many questions but out of respect for you guys I will try to keep it simple. I have a fluval roma 125 with stock lighting and a 305 external filter. I currently have mixed barbs in there and am thinking of re-homing my tiger barbs and keeping cherry barbs, black ruby barbs and odessa barbs. At the moment I have a coulpe of java ferns but don't feed them or anything and the tank looks a bit sparse. I love the idea of having a jungle with healthy plants but am a little daunted by dosing, co2 and all the others stuff. First off, ro water or not? What do I need to test my tap water for to see if it is suitable for a planted tank?