Help me if you can.
Have a newly matured D-D 24g cube set up as a planted tropical tank.
ph 7.6, temp 26c, ammonia o, nitrite 0, nitrate 0.
CO2 is by the Tetra CO2-Optimat system which i have been dosing at the rate of 1 x diffuser tube full per day.
The guy in the shop said i should do this during daylight or tank illuminated hours which is what i have been doing.
Everything was certainly fine doing this with the Danios that i put in over a week ago and they are still ok.......BUT i put in 5 x Neons yesterday and left them to it for 24 hours without CO2 dosing. Today at 12 noon when the lights came on the tank i started the usual CO2 dosing as previosly described. Within about 3 hours (approx) i noticed a dead Neon and then another 2 in the next hour......they looked to be gasping at the surface & breathing very quickly before dying. The last one is on the way out as i write and i dont have an aerator to help with oxygen.
DID CO2 KILL MY FISH ??
DID I DO RIGHT IN DOSING THE CO2 WHILE THE TANK IS ILLUMINATED ??
I have read the Tetra leaflet that came with the system but to be honest i think the bit about dosing times is very badly written and confusing!
Your responses and thoughts would be appreciated.
Peterg
Have a newly matured D-D 24g cube set up as a planted tropical tank.
ph 7.6, temp 26c, ammonia o, nitrite 0, nitrate 0.
CO2 is by the Tetra CO2-Optimat system which i have been dosing at the rate of 1 x diffuser tube full per day.
The guy in the shop said i should do this during daylight or tank illuminated hours which is what i have been doing.
Everything was certainly fine doing this with the Danios that i put in over a week ago and they are still ok.......BUT i put in 5 x Neons yesterday and left them to it for 24 hours without CO2 dosing. Today at 12 noon when the lights came on the tank i started the usual CO2 dosing as previosly described. Within about 3 hours (approx) i noticed a dead Neon and then another 2 in the next hour......they looked to be gasping at the surface & breathing very quickly before dying. The last one is on the way out as i write and i dont have an aerator to help with oxygen.
DID CO2 KILL MY FISH ??
DID I DO RIGHT IN DOSING THE CO2 WHILE THE TANK IS ILLUMINATED ??
I have read the Tetra leaflet that came with the system but to be honest i think the bit about dosing times is very badly written and confusing!
Your responses and thoughts would be appreciated.
Peterg