David Moyer
Aquarium Advice Apprentice
I saw some people use purified water, and some people use distilled water. Which one is better for using for a water change or topping off.
I have a biocube 14
Thanx
I have a biocube 14
Thanx
I just got a TDS meter for $11 and have started testing everything just to see how it all compares.
Got it on eBay.