fish gasping at surface after water change

[fredyk]

tank parameters: 55gal pressurized co2. ph 7.5 gh 12 kh 4-5

problem occured after adding calcium carbonate, because snails seems to be having breakdown of shells. just dumped in small amount of calcium c

have done 4 water changes of about 33% and fish gasping at surface in morning.


Mark

[Aaron]

Do you have a pH controller? If you do you just raised your KH!

[Cristy Keister]

What's the temp?
Check your co2 input
All the fish are gasping?

[fredyk]

temp is in high 80s. I did increase the bubble rate and I also put the solenoid thing on the light timer. so i increased the bubbles but that was during lights-on. also, put lights on in morning so any co2 would be gone by night.

But fish still gasping; snails at top of tank and 2 discus and black neons and white clouds and platties gasping for air. not catfish.

started air hose at night but forgot last night. Lost 5 white clouds and 3 black neons today. bummer : ( white clouds were really cool

turning off co2. try again in a month or so.

Mark

[Cristy Keister]

Lower the temp ASAP. Dissolved oxygen will be too low when the water is that warm. It's not surprising that White Clouds were the 1st to go since they are a cool water species. Even the Discus won't like it that warm. Increasing CO2 just escalated the problem. If you get the temp down to 85 or so you can use some CO2, but be careful not to OD.