I just turned my chocolate Gourami tank into a black water tank and they are doing great, I was just wondering if there is such a thing as too black of water... All of my levels are stable and in the correct range for my chocolate's they are thriving but it is starting to look really dark in there. Also what other fish are suitable for black water? I have a fish in there that the LFS told me to get as a distraction fish but I have no idea what they are; they grow no bigger than a few centimeters, silver with a dark horizontal stripe down the middle and a few vertical stripes on the tail, they are livebearers and sort of look like a tetra and are very docile fish. I have one otto cat, a dwarf bristlenose pleco, an apple snail and some shrimp. If any of these fish are unsuitable I can swich them to my other planted freshwater tank with similar fish.... any suggestions or information would be appreciated! thank you!