LSU_fishFan;1077129 wrote: When you siphon the sand, it's probably releasing sulfur and/ or other harmful material. If you add the water back to the tank, you would not be removing these substances.
Just my opinion
Fishlips;1077153 wrote: I don't have sand, BB. Also siphoning stuff of rocks.
I've done this in my refugium 👍JBDreefs;1077160 wrote: I cleaned my sump this way a couple week ago: just a pump cycling water through a sock. I don't see any reason why this would be problematic.
LSU_fishFan;1077129 wrote: When you siphon the sand, it's probably releasing sulfur and/ or other harmful material. If you add the water back to the tank, you would not be removing these substances.
Just my opinion
Exactly it probably is releasing into the tank anyway. I doubt the water you take out has any higher concentration of sulfur than what is left in the tank. JMOdball711;1077132 wrote: Agree, this is a good point Luke makes. Any water coming out from sand/gravel cleaning should be disposed and not recycled.
Fishlips;1077126 wrote: I did a WC, and feel I need to siphon more debris out.
Is it ok to siphon into a sock and just let the water stay in tank.