Water Change After Co2 Has Turned Off For The Day?

[Deleted member 107737]

Hi All.

I'm doing a water change today but not sure when is the best time to do it. I have pressurized co2 so should i wait until 5pm when it switches off??

Thanks,

Dave

 

[techen]

Best time is when the lights are off.

 

[Livewire88]

I have always done my water changes in the morning before the lights turn on. 
 
Usually about 3 hours before. 

 

[SLIM]

I do all my cleaning and tank emptying with lights on then fill up with lights off.

 

[levahe]

Don't think it really matters to be honest, I do mine when I feel like it whether lights on or off or before or after or during co2 period without any adverse effects

 

[SLIM]

This is subjective to your areas waters supply and how much dissolved co2 is in your tap water.
If its high your know because your plants will pearl after a water change if you leave the lights on.
If this happens I highly recommend water changes or at least filling up after lights off or the co2 swing/fluctuation will trigger BBA

 

[levahe]

My plants pearl like mad after a water change XD, I'll sit on the fence with this one, I'm not convinced !