I ordered a thing of seachem Malawi lake salt after learning my tanks gh was 7. While waiting for it to arrive I also added 2 nylons full of crushed coral to my filters but imagine this didn't help the hardness all that much. Do any of you have any tips or precautions for using lake salt? Also given that my tanks gh is so low what positive differences do you think are foreseeable after my gh has raised? ( fish are mainly peacocks)