DIY co2 ??

[MandyINCo]

Is the DIY method harmful to fish at all?

 

[aqua_chem]

Not if done safely.

 

[Kharrnn]

How is it done safely?

 

[MandyINCo]

What I've seen online is feeding a check-valved hose into my filter intake, running from a 2L bottle filled with 2cups sugar, 1/2 tsp of yeast and water. Is this safe?

 

[blert]

I'd put a second overflow bottle between the yeast bottle and check valve.

 

[MandyINCo]

So just run The hose out of the yeast bottle into an empty bottle, then back out to check valve? How do I set up the hose for the overflow bottle?

 

[blert]

http://www.qsl.net/w2wdx/aquaria/diyco2.html#6
About 3/4 down the page. Pic is labeled "DIY CO2 gas separator".

 

[smallfry53]

The way I made mine without using those fittings or glue/silicone is making the holes in the caps a bit smaller then the tubing. Then you cut the tubing at a 45 degree angle so you can stick it partially through the hole. Once you get it through the hole a little bit pull the tubing through with a pair of pliers. That way the tubing is nice and tight.