HELP!!!! Entire co2 bottle empty in 3 days

[andresont]

Try venting with the air stones, make all your power heads shoot up to the serfice to vent Co2 and bring the Ph up .
keep your light on for 16 hrs.
Do not steer your sand bed
Large water change will stress your tank even more.
do not play with chemicals now, you will throw more things out of ballance
5% water change daily for 3 days will help. you can do 3 more next week.
anything more than that will cause more stress.
relax you will be OK.