downflow valve

Hi all, Like many of you, I tried the gate valve mod after suffering with the stock red sea valve for a year, and while it was much better, I still had to tweak it now and then (especially after doing a water change). I needed it to be below the emergency overflow and was adjusting it every...

Hi all, (this might feel like a double post as it links back to the main one so admins feel free to tell me to delete!) I tried the gate valve mod and while it was a tonne better, I found I still had to adjust it every so often especially after turning off the pumps to feed corals or doing a...