The Planted Tank Forum banner
1 - 7 of 7 Posts

·
Registered
Joined
·
1,316 Posts
Discussion Starter · #1 ·
In my 100 gallon, I inject pressurized co2 with a ph monitor. My ph out of the tap is 6.8 and by the end of the day, my co2 gets it down to 6.3. Today for example the ph reading got down to 6.2 which usually doesnt happen and everything was pearling like crazy, which is good. But my fish didnt even get excited to get feed this evening like they usually do. I think that they werent used to the amount of co2 that was in the water. FYI I have my co2 on a timer to where is turns off at night time and my o2 turns on fo about 6hrs at night.

My questions are:

I want to start increasing my co2 amount in my tank so the ph monitor gets to 6.2 or lower. Will my fish slowly adjust to the increased co2?

What should be my target goal of co2 in my tank?
 

·
Registered
Joined
·
3,199 Posts
Rach, when I have high CO2 my fish have been known to really slow down. And if they are too slow, the CO2 is too high. That is the bad news. But here is the good news...I have very similar water, and keep my CO2 at a pH 6.2 with kH 4-5 and all my fish are fine. So it may just be an adjustment period. But if they continue to be sluggish after a while, better bring the pH up a little and see if they start moving around more. IME, the first sign of CO2 overdosing is sluggish fish.
 

·
Returning. Videotapes.
Joined
·
1,389 Posts
What you are experiencing with your fish is NOT GOOD!! THere is too much CO2 in your water, which is not allowing the fish to expel CO2 from their gills in exchange for oxygen. They are essentially suffocating. Turn the CO2 down, or add an airstone that comes on at night time, or some sort of surface agitation to allow for proper oxygen exchange!
 

·
Returning. Videotapes.
Joined
·
1,389 Posts
Sleepy fish=fish that are getting stressed out! NO HEHE Boink!

Perhaps the airstone should run for 10-12 hours to help rid of the excess CO2. I would hate to see you lose all of your fish one day to something that is easily controllable, buddy! Either that, or just turn down the CO2 a bit is all. By the way, yes, your fish will adjust fine to the lower pH levels, but you should try to obtain that by perhaps adding peat moss to a filter bag, or something to that effect, and not by increasing your CO2 output.

I'm not yelling at you! :D Just trying to look out, is all.
 

·
Registered
Joined
·
1,316 Posts
Discussion Starter · #7 ·
You mean your airstone turns on at night? Not O2, right?
yes i meant airstone.....


I dont really want my ph lower...i was just wondering what the lowest co2 amount i could go with the ph monitor....
 
1 - 7 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top