Hi Guys The new tank is finally up and running. All parameters are in check except for Nitrite. I think I know where its coming from, the wood. I had the wood soaking for about 3 mths and the water it was in was being refreshed every second day or so, but it still had that soaking wood smell when it went into the tank. I hooked up my old mature filter but it is hugely under rated for the new tank. I kept it running whilst I did the new set-up so bateria loss, if any, should be very minimal. Yesterday I hooked up an eheim 2228 to assist with the filteration and will be hooking up another one next week. The eheim has new media in it, so it still needs to gain momentum with regards to bacteria. I am also using Microbe-lift Special Blend and Niteout to help prime the extra filter/s. My question is this, can I use Prime to detoxify the 0.25ppm of Nitrite I have in the tank? If I double or triple dose it? My fish have been in barrels for 5 days now and although they are quite chilled, the situation is less than ideal! Any advice/help is much appreciated!