Uhhh, too much co2 i think, fish dont look good

SuBXeRo

TaNkAsAuRaUs REX
Jul 22, 2008
533
0
16
38
NJ and AZ
I have had the DIY co2 going for like 2 days now and my fish arent looking too good at all. They have been gasping it looks like for air in the water. I havent had any surface agitation and the co2 has been pumping contastly, two bottles of it. i put an airstone in, took out some polyfil from my filter to increase flow in hopes to help increase fcirculation. i know the airstone kinda releases the co2 but the fish were all on the bottom in the plants not looking too hot.
 
Do a 40% water change and figure out a way to limit the Co2 that get trapped in the water until your Co2 mixture calms down. You want water movement on the surface, just don't break the surface of the water with agitation.
 
its a 72 gal. I looked at my fish this morning and they look atlot better since i put the airstone in. This is temp until i get my pressurized kit, so i have to wait about a month or so and deal with what i got
 
Without more information, I really doubt it was the CO2. DIY CO2 on a 72g is really difficult, so getting to levels that are dangerous to fish is unlikely.

What's your yeast setup like? I suppose a monster DIY co2 setup could pose a threat, but it'd really have to be huge.

Have you made any other changes to the tank, added anything else?
 
i did 1 pkg yeast, 2 cups sugar and 1 tsp of baking soda, i did this for each bottle. Both are direct feed into my filter (eheim 2217). I just planted it last friday, pictures are in the gallery connected to the link in my sig. There was no surface agitation and i was getting very good micro bubbles. I fear the o2 exhange has been very low since i planted as i havent had surface agitation since then, i did the DIY CO2 on tuesday. I have had lights on for 8 hours a day, switching between 1.5 wpg or 3wpg, it has been very inconsistent. The co2 has been going 24/7 so if its been really well dissolved and no agitation, gas exhange many not have been good enough
 
i did 1 pkg yeast, 2 cups sugar and 1 tsp of baking soda, i did this for each bottle. Both are direct feed into my filter (eheim 2217). I just planted it last friday, pictures are in the gallery connected to the link in my sig. There was no surface agitation and i was getting very good micro bubbles. I fear the o2 exhange has been very low since i planted as i havent had surface agitation since then, i did the DIY CO2 on tuesday. I have had lights on for 8 hours a day, switching between 1.5 wpg or 3wpg, it has been very inconsistent. The co2 has been going 24/7 so if its been really well dissolved and no agitation, gas exhange many not have been good enough

Too much yeast will burn through the mixture in short order, but that isn't your problem.

No surface agitation will lead to what you believe, very low O2 levels and gasping fish. It's not too much CO2 but lack of O2 that is the problem.
 
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