Dark grey gunk
- Thread starter Scotty333!!!
- Start date
Likely a build up of decaying organic material. That's why it's important not to disturb your sand too much and also, why a lot of people go with bare bottom tanks.
I personally prefer a sand bed. I vacuum about 1/8 to 1/4 of the sand bed once a month or every other month. In other words, I'm only disturbing part of the sand bed when I vacuum and, I'm removing the built up organics as opposed to allowing them to remain in the system.
I personally prefer a sand bed. I vacuum about 1/8 to 1/4 of the sand bed once a month or every other month. In other words, I'm only disturbing part of the sand bed when I vacuum and, I'm removing the built up organics as opposed to allowing them to remain in the system.
Scotty333!!!
Active member
Ok
No, I just level 1/4” but noticed on one area it was dark underneath
No, I just level 1/4” but noticed on one area it was dark underneath
Honestly, it could be something else but, my bet is organic material. I'd make sure to run carbon and keep an eye on things and keep up with your water changes.
Scotty333!!!
Active member
I do run carbon 1 hr a day cos it’s online with the phos reactor
Don’t do water changes no more, all levels spot on
Don’t do water changes no more, all levels spot on
