ok so my 150 ph is on acidic side between 5.5 and never gets higher than 6.0, the water coming out of house is like 7.7 - 8 but as soon as i test water in tank its acidic. i have tried water changes, a cpl diffrent ph up stuff and tried a cpl things that u put in and buffers ph to 7. nothing works my ph stays acidic, what am i doing wrong, i know ph can be unstable but y cant i raise it. it seems like i will need alot of ph up to see alittle move up in ph, but im afraid to dump a ton in there bc the boxs say only a small amount per 24 hours. iknow i dont wanna rasie it fast but i cant rasie it at all lol, its been like this for about 3 weeks or more and i still cant fix it

thanks for any help

thanks for any help