Yes spring water will be what I use. I honestly truthfully am not sure to be honest with you what the hardness for either water source is but I will let you know. I am going to take a sample of the spring water down and have him test it. I will also buy one of the api test kits but the ph one will not even register with the spring water because I tried it before after I got out of fish keeping I was there one day and brought some home and the ph wouldn't even register because the api kit doesn't go that low so as I researched it I found out that the water comes out 5.9 which explains why my api test wouldn't work. Anyhow I am going to take a sample of it in and have him to check it. Do you happen to know what a ideal gh should be for angelfish neon tetras and hatchet fish should be? I know discus are very delicate fish and need lots of upkeep with them and he said one of his customers keep them in that water and has no problem but just because he is keeping them doesn't mean the water is where it should be ideally. I googled the hardness and can't find anything on the spring water only thing I could find is ph of it.