[rayldavis]

Hi All,

I have been skulking around on DIY Co2 forums for ages now. I want the lush plant life, but I am terribly afraid of gassing my fish and my dear snail, Lewis.

I also did not want my fish to suffer at night as my DIY co2 continued to run. As it is, I plan to run c02 at around half the recommended level (from 1 bubble per every 2 seconds to 1 bubble per every 4 seconds for my 10 gallon, heavily planted tank).

So, I had an idea for how to fully protect the fish at night from the co2. I will simply make a "chimney" that is placed over the co2 diffuser and sticks out of the water - completely outgassing the co2 without it dissolving into the water column. Here is a picture of my current, and very shoddily made, Co2 Chimney posted below. Does anyone see any particular issues with this approach? I am using a citric acid mix using the following diffuser and DIY Co2 Diffuser:

https://www.amazon.com/JARDLI-Diffu...diffuser&qid=1567531896&s=pet-supplies&sr=1-4

https://www.amazon.com/Anself-Gener...=co2+kit&qid=1567567587&s=pet-supplies&sr=1-3

 

[Deanna]

There is another discussion going on about nighttime CO2 at https://www.plantedtank.net/forums/11-fertilizers-water-parameters/1296751-how-manage-co2-overnight.html that you might want to tune into.

However, in your case, why not just put a "Y" connector in the line that you can open and close to vent the CO2?