DIY CO2 question

[joephys]

Ok, I recently planted my tank about a week ago. I made a DIY CO2 out of a 3 litter soda bottle. I am using the upside down bowl diffuser method. I took a very small terracotta pot and used a plate that was too big for it to make the upside down. (The color looks good in a planted tank, kinda earthy.) Anyway, after a week I only have a very small amount of gas under the plate.

I wonder whether my diy co2 is just working slowly, or if most of it is dissolving in the water and that is why the amount of gas under the plate seems like so little.

According to the charts (ph 7.0, kh 5deg) I should have about 15 ppm co2. I use seachem acid buffer and alkaline buffer since my tap water has very little kh.

[jerman]

you could have a leak in your bottle cap. did you dissolve the yeast in h2o before putting it into the soda bottle. could be bad/old yeast. Also if the room its in is pretty cold like a basment that will slow the yeast growth/production. And if you have the bowl way at the bottom of the tank it can creat a lot of back pressue (the pressue of the water pushing the co2 back inot the tubing.) Pull the tube out of the bell and hold it 1in under the surface and you should have bubbles streamin out. Or just start over from scratch, thats why diy is so great. I have 3 soda bottles running on my tank and one of them just didnt take and had to redo it.