sparklymoonshrimp Posted August 14, 2021 Share Posted August 14, 2021 (edited) Hello, I planned on making my 5.5g tank a planted one, so I wanted to experiment with DIY CO2 as a way to save money. I followed the instructions of this article here: https://www.buildyouraquarium.com/diy-co2-reactor/ .... Despite following these directions, there are no bubbles whatsoever appearing from the diffuser, and after 12 hours the CO2 indicator shows no change and sits at blue. Since my tank is smaller, I went with a single bottle with a size of 15.2 fl oz and so halved the ingredients (sugar, yeast, baking soda) when preparing the mixture. I think this part might be okay-- I can see that the bottle has been reacting for about 12 hours now, bubbles are fizzing up towards the top of the bottle. I think something might be wrong with the physical mechanics of how the bottle was set up. Initially I had been fiddling around with the tubing and inadvertently pushed several inches of it into the bottle without realizing it, straight into the liquid mixture, so I think that might've made it to where the gas wasn't entering the line properly. Liquid also entered the tubing, and is scattered around different parts of it as well as a bit in the check valve and diffuser. I poured about 1/5 of the liquid in the bottle out and pulled the tubing further back out (the silicone for the lid was still wet, and I re-applied more afterwards) so that gas could rise to the top of the bottle and go cleanly into the tubing. I also wonder if the placement of my check valve is incorrect. In the article, it states to insert the check valve to where the arrow is pointed in the direction of CO2 flow (from bottle to tank) but the check valves I have do not show an arrow. The picture supplied in the article makes it look like at the tip of the arrow is also the tip of the the piece inside the check valve, so that's what I used to base the check valve insertion off of, but now I wonder if this might be wrong, too... Does anyone know what might've possibly gone wrong with how I did my CO2 system? Please let me know, I'm eager to get plants in my tank! 😭 Edited August 14, 2021 by sparklymoonshrimp Link to comment Share on other sites More sharing options...
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