What do i do?

The PH in my tank is high i keep taking water out an adding but it keeps being high.. i know i read here before that Florida ph tends to be higher but this is almost full Ph and he keeps just sitting/sleeping in one corner but his little fins look so fragile so o know not like it.. do i need to take everything out an redo whole thing? I know sonce i added more live betta plants the more problems i seem to have im about to go back to fake stuff cause never had the problems in having now...any ideas what i could do or could be happening?