Sorry, had an emergency, I got the 165w, 36gallon tank, 7 months old, I am currently dealing with a new bloom of dinos, trying to figure that out, but just did test and my nitrates are spiking. alk= 10 nitrite =0 pho= 0 nitrate=8 ph-8.1....7/21 alk was 11, nitrate was 5, nitrite was 0.02. im chalking it up to these dinos, they are getting worse and I have microbacter7 coming in today hoping that will help. the RBTA has gone to the corner of the tank today, so hes getting some light. any ideas? I been feeding a little more to help dinos, says to get pho/nitrate up...but now nitrate is too high and PHO aint going up at all!!