Baking Soda

[bluejett]

I just cleaned some of my old tanks that had thick hard water stains, I couldn't believe how easily it came off, I just put some baking soda on the wet tank and used an acrylic scratch pad, it took very little elbow grease and just a few minutes. Next are the lids and filters more tanks and anything else I can find

Bringing out these tanks is like christmas

 

[orangefish]

Won't the baking soda be harmful to the fish/water that you will put in the tank? That's why I avoid using anything but water to clean my tank.

 

[Dinky Stig]

It's just sodium hydrogen carbonate, it'll only increase the PH slightly if it gets into the tank, but if it's just residue left over, it wont make a difference.