Ok, ive began the process of starting up my tank, 2 days ago i mixed saltwater in the tank for the initial start up, i waited for the temp to reach 75 with my heater, yesterday i installed my powerhead and filter. I think ive reached the correct salinity im aiming for. Now i've hooked up my tank lights and they look great, the only problem is with the combination of my powerhead and filter it puts alot of "fizzy" bubbles in my tank and it doesnt look so great, any advice to fix this? i have a emperor penguin filter and a petco powerhead