Hey all,
So I get up this morning and EVERY ONE of the (200+) fish in my 180 were at the surface gasping for 02. The cardinals were very pale and breathing very rapidly. The espei pencils and the platies were also at the surface.
I immediately added a Koralia IV in addition to the Koralia II (which was not running) I have in the tank, and within 15-30 minutes they were settling down. A check 2-3 hours later and only a few fish were lost. All others had the color restored, breathing and swimming normally, normal behavior, etc.
I normally only have the II model powerhead on when c02 is on, and the c02 was OFF at this time.
I still have both powerheads running at this time and will remain that way, I think.....
The tank has been running this way for several weeks now since I replaced the pump and reconfigured the outlet plumbing and I had NEVER seen this prior or any signs of distress at all. I have even massively reduced the c02 bubble rate due to the efficiency of the new setup.
I did my normal 70% weekly water change last night, dosed my N and P and my normal mfg weekly dosage of Excel. Nothing different than any other week, except that I did the WC at 11:00 PM instead of 8-9 PM.
I did not dose more than usual and the fish were fine that I could see when I went to bed 90 minutes later.
The NC canisters were clean, PSI on all 3 guages I have were as they are normally, PH/temp meter showed 'normal' reading for my tank and time of day(recently calibrated), and I had no indications that anything was different in ANY WAY. Current and flow seemed the same as it always was.
Just curious what could have caused this?
Maybe the tap water had more c02 than normal for some reason and it took some time to affect the fish? I did have the normal pearling effect after the WC, but again, no more than normal.
Any thoughts are welcome.
It was really very strange.
So I get up this morning and EVERY ONE of the (200+) fish in my 180 were at the surface gasping for 02. The cardinals were very pale and breathing very rapidly. The espei pencils and the platies were also at the surface.
I immediately added a Koralia IV in addition to the Koralia II (which was not running) I have in the tank, and within 15-30 minutes they were settling down. A check 2-3 hours later and only a few fish were lost. All others had the color restored, breathing and swimming normally, normal behavior, etc.
I normally only have the II model powerhead on when c02 is on, and the c02 was OFF at this time.
I still have both powerheads running at this time and will remain that way, I think.....
The tank has been running this way for several weeks now since I replaced the pump and reconfigured the outlet plumbing and I had NEVER seen this prior or any signs of distress at all. I have even massively reduced the c02 bubble rate due to the efficiency of the new setup.
I did my normal 70% weekly water change last night, dosed my N and P and my normal mfg weekly dosage of Excel. Nothing different than any other week, except that I did the WC at 11:00 PM instead of 8-9 PM.
I did not dose more than usual and the fish were fine that I could see when I went to bed 90 minutes later.
The NC canisters were clean, PSI on all 3 guages I have were as they are normally, PH/temp meter showed 'normal' reading for my tank and time of day(recently calibrated), and I had no indications that anything was different in ANY WAY. Current and flow seemed the same as it always was.
Just curious what could have caused this?
Maybe the tap water had more c02 than normal for some reason and it took some time to affect the fish? I did have the normal pearling effect after the WC, but again, no more than normal.
Any thoughts are welcome.
It was really very strange.