Mar 5, 2026 #1 MikeyZo Well-Known Member View Badges R2R App User Joined Mar 2, 2025 Messages 844 Reaction score 1,449 Location Long Island Rating - 0% 0 0 0 How much does surface agitation affect PAR? I assume given reflection and refraction angles it must have a noticeable affect especially directly under the returns.
How much does surface agitation affect PAR? I assume given reflection and refraction angles it must have a noticeable affect especially directly under the returns.
Mar 5, 2026 #2 S Subsea 7500 Club Member View Badges R2R App User Rock Pool Reef Keepers Joined Jun 21, 2018 Messages 9,045 Reaction score 11,724 Location Austin, Tx Rating - 0% 0 0 0 Good luck with those numbers. Of course it has an effect. Take PAR readings during normal operation, then turn off all circulation and remeasure.
Good luck with those numbers. Of course it has an effect. Take PAR readings during normal operation, then turn off all circulation and remeasure.
Mar 5, 2026 #3 get-salty Well-Known Member View Badges Joined Mar 2, 2023 Messages 948 Reaction score 807 Location Dallas Fort Worth Rating - 94.4% 17 1 0 i would take par with pumps off then again with pumps on and adjust accordingly with pumps on. You want the stable par when pumps are on.
i would take par with pumps off then again with pumps on and adjust accordingly with pumps on. You want the stable par when pumps are on.
