I rinsed all my media in salt water and put it back in the DND a little differently. From what I have read about carbon dosing is that the slime is a byproduct of the bacteria feeding on the carbon. When I used to carbon dose my tank I would get the pink slime in my filter socks but not at the amount I found in the DND. I am going to reduce my carbon dosing to the DND, about half of the recommended amount. Also may increase my flow rate to 2gals per hr vice 1gal per hour. That will still give me 2hrs from the time the water enters and exits the DND. Time will tell if this works for me.Hi Steve
I can't really comment on why however I have experienced a similar scenario tonight that I have a white build up on my outlet?
Does anyone know if this is a good thing or bad thing? I haven't got any smell but I'm unsure if this means the flow is to slow however testing the nitrate I still have 10 nitrate coming out the DND?
If the slime is bacteria shouldn't the reading be zero? Or am I dosing too much carbon causing the bacteria slime?
Pic for reference.
Thanks Craig