PlanetCatfish.com

Guys,
my KH is too low ( 1 ) for to long - 1 month
highest i have seen in 6mths ( 3 )
what is a good method to raise slowly without making my PH crash.( 7.1 ) now
i like to do this naturally .
GH is running around 4-6 for over 2 months
i run 2 canster filters in 1000 lt tank

Wall

small amounts of calcium bicarbonate, so the pH doesn't rise too much.
or buy a kh booster designed for RO water and add this in small amounts.

I am no expert, but I have a magnetic water conditioner on the cold water feed into my house which reduces drastically my KH levels. Every water change I have to supplement with Sera KH plus. I dont know if you will be able to get this manufacturer over there, but you will be able to get an equivalent. It has worked wonders for my tank and I manage to keep my KH level at around 6.