Henrik
Member
I have an old drop checker from sera, but ran out of the liquid many years ago. Can I use a simple PH test liquid (Tetra? Sera?) and re-use the DC? It says in the instructions that you fill it with tank water and then put 3-4 drops in...
I have read that people use a KH4 liquid instead of tank water, but my tank water is actually KH4, so do I need to bother about spending money on a KH4 standard?
Thanks, Henrik
I have read that people use a KH4 liquid instead of tank water, but my tank water is actually KH4, so do I need to bother about spending money on a KH4 standard?
Thanks, Henrik