Im so mad right now! dead Cuda! co2?

[Sab_Fan]

excel does help in the same way but it also kills some types of algae. which is why people spot dose and/or overdose excel directly on the algae area.

you would probably have good results dosing excel to kill the algae..

I agree with this about Excel, tho' I freely admit I don't know why it works (I don't think Seachem knows why either)

 

[malachi]

your drop checker may be off.
hopefully the ammonia is from the dead fish.
while some people say light green is ok i find my fish look stressed.
the co2 can cause a ph drop. but the drops probably not what killed them.

when theres 2 much co2 in the blood stream it does 2 things reduces oxygen carrying ability, and causes the blood to become acidic.


with co2 the idea is too out compete using all nutrients from the water column, probably having plants rely on there roots. i think it doesn't work that well

excel does help in the same way but it also kills some types of algae. which is why people spot dose and/or overdose excel directly on the algae area.

you would probably have good results dosing excel to kill the algae..

right on.

what about running oxygen all day? is that a waste of time? it seams to me that if the co2 levels are up, then it doesn't matter if they have added oxygen to the water because they still cant respire if the co2 is blocking it.

also, does running the oxygen up during the day cause co2 to be lost or cause a problem with co2 being used by the plants? am i causing another problem. Ive read that you should alternate co2 and oxygen but im just too scared to do that so far. Ive read to run co2 during the day and oxygen at night when the o2 levels drop after photosynthesis is done.

i turned the co2 down considerably and the drop chekcer is in the green this morning. i wonder if the tiny bit i did turn up the co2 was reall a lot a bit and i wasn't home the watch the drop checker go to bright yellow. last night i freaked out and turned the co2 down and left it. right now the checker is green right where i wanted it to be.

i also did a big water change and i am going to recheck everything right now to see where the ammonia levels and nitrite levels are now.

if the co2 went to 40-50ppm, would that be enough to kill a 7 inch cuda? they are not easy fish to keep so maybe. i know 1ppm ammonia can kill him and panic him no problem.

 

[mgk]

right on.
what about running oxygen all day? is that a waste of time? it seams to me that if the co2 levels are up, then it doesn't matter if they have added oxygen to the water because they still cant respire if the co2 is blocking it.

also, does running the oxygen up during the day cause co2 to be lost or cause a problem with co2 being used by the plants? am i causing another problem. Ive read that you should alternate co2 and oxygen but im just too scared to do that so far. Ive read to run co2 during the day and oxygen at night when the o2 levels drop after photosynthesis is done.

if the co2 went to 40-50ppm, would that be enough to kill a 7 inch cuda? they are not easy fish to keep so maybe. i know 1ppm ammonia can kill him and panic him no problem.

oxygen is important, but useless if you overdose co2. however low oxygen levels are bad too. I would turn the air pump off and see how the fish are a couple hours later, they may need the air pump.

most planted tanks with co2 injection wouldn't want the air pump as it breaks the surface tension and causes co2 to escape. beware of the potential co2 increase when you remove the air stone.

I myself wouldn't switch the co2 on and off as this will cause ph swings. i suppose you could just turn on the air pump at night.

remember its important to watch your drop checker and bubble counter.

i don't know if it would kill the fish or not. i kinda think the bigger the fish the more oxygen it needs(hence the greater chance of co2 overdose), but that opinion isn't based on anything but intuition.