Co2 Should I Take It Out At The Night ?

[MrWhite]

I have a nutrafin co2 unit that im gonna set tomorrow i no it can change ph levels will this be ok for my fish and should i unplug it at the night so the ph change isn't to much ?

 

[three-fingers]

Since it doesn't waste CO2 keeping it on I wouldn't bother.

Fish can adapt to changes in pH quite easily, and do so in nature all the time.

I kept my Nutrafin unit on 24/7 when I had it in a 5 gal with a pair of rams.

So unless you already have soft acidic water and your fish prefer hard alkaline water, don't bother.