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

Everything has i think gone belly up what do i do. 20 fish cant even see them right now they are hiding in the rocks. My leathers look burnt help. I am doing a water change what else can i do.

anyone have mark or mikes cell from hidden reef?

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.

ya, surface agitation is the best thing, the CO2 will "gas off" quickly. Keep checking with a pH meter or test kit until it's back to normal.

Are you using a Milwaukee regulator?

Mondo, did the co2 get into the water? I,m not sure of the senario here. Good advice from Anderson though, if its in the water system.