G
Guest
Guest
Howdy --
I have white sugar sand substrate in ne of my tanks. I added some crushed coral to this tank.
There is now this fine, dark grey moldy looking "dust" all over the substrate that is hideously ugly and will not vacuum up with the gravel vac. Any suggestions what it is and what i can do to rid it?
Thanks
P.
I have white sugar sand substrate in ne of my tanks. I added some crushed coral to this tank.
There is now this fine, dark grey moldy looking "dust" all over the substrate that is hideously ugly and will not vacuum up with the gravel vac. Any suggestions what it is and what i can do to rid it?
Thanks
P.