Raising GH

[DrgRcr]

Is there any type of media that you can run in a filter that will raise GH the way crushed coral would raise KH and pH? I'm curious to know if there is an alternative to mixing a buffer recipe at every water change. I really don't use anything in any of my tanks, but I was just pondering ideas.

[efors]

Well, I don't need to use it; but some people use Epsom salt to raise the GH.

[kay-bee]

Yep, epsom salt (magnesium sulfate) will do it, but I'm not sure if there is some media out there that will also do it.

[DrgRcr]

Yeah, I knew epsom salt does it, I actually just used it along with metronidizole to treat for bloat. I did check the GH in the tank and it had increased by double. I'm more interested in knowing if there is something that gives off the effect over time. Maybe a large solid chunk of epsom salt!:eek:

[tanker]

I'm more interested in knowing if there is something that gives off the effect over time. Maybe a large solid chunk of epsom salt!:eek:

A chunk of limestone will do it (but will also raise PH and KH too).

Like Kalkwasser (available at LFS).