"Marksfish" wrote in message
news:2EEaa.11488$Lq.912013@stones...

"Buddy" wrote in message
...
Some driftwood may do the trick a lot cheaper unless the filtered
water would benifit more than just the fish.

Or even peat!

Regards

Mark
www.marksfish.f9.co.uk



Correct me if I'm wrong, but I think I read somewhere that organic materials
like wood or peat lower the pH of the water by leaching mild acids into the
water. This will lower the pH , but it doesn't change the gh / kh . If these
materials don't absorb minerals , they would actually INCREASE the total
dissolved solids ( TDS ) .

Again , I may be wrong . If so , please explain why ....

Keith J.