Hi all. Good day to you. Would like to seek advice on power head setting. I have a 3 side view tank that is 220gallon tank with dimension 7x2x2 and currently running on 2 Neptune WAV + 2 Nero 5. Previously i was running 2WAV + 1Nero 5 and it seems that my tank does not have enough flow. The sandbed is always dirty and cause issues like cyno and hair algae. But somehow the algae on rocks seems to be in control. I recently added the forth powerhead and currently planning a flow schedule on all 4 powerheads to try to cover all the dead spot on the tank. Please take a look at my setting and advice me if you see something wrong ? I tried to create a gyre with 2 Neptune WAV on the left side of my tank and 2 Nero 5 on the right side of my tank but the setting on nero 5 was quite basic i couldn't think of a way to set it. Anyone here have experience with this 2 brand of powerhead and can advice me on the setting? Thank you so much in advance.