Pond Boss Forums INTRO Questions & Observations chlorine (city water) in fish pond.

My catfish pond is down 6 foot. The pond is normally 21 foot deep, probably 12 foot average. If I added about 1 foot of water from city water (pond is 1 acre), would that be enough chlorine to hurt the fish? Thanks.

If the an answer is yes, would adding 6 inches be ok? Thanks you.

If the an answer is yes, would adding 6 inches be ok? Thanks you.

I would think your water bill would kill you.

Here is a study: Residual Chlorine

It suggests that 0.09 PPM (parts per million) or mg/l (milligrams per liter) of chlorine will kill 50% of your catfish within 96 hours.

Imagine that you had 1 million, 1 gallon jugs of water and a 12 oz can of pop, or beer if you prefer, except this is actually chlorine, and decided to mix them all together. If you put your catfish in the mixture, they would die.

EPA maximum limit for chlorine or chloramide in municipal water is 4.0 PPM. That is 44.4 times the limit in the study.

So instead of adding 11.5 oz to 1 million gallons, which is surely lethal, you could be adding up to 4 gallons to the 1 million gallons.

Fish really have no tolerance for chlorine.

I'm just saying, this is a worst case scenario. Chlorine will gas off out of water in time, but not completely. Other environmental factors may play a role, but in which direction.

The ECO system could be destroyed for years!

Municipalities are also using chloramine now, which won't offgas as quickly, but is just about as bad for the fish.

Actually Chloramide (sp) is worse because it breaks down to Ammonia and Chlorine. Your fish wont be to happy swimming in the same effluent they excrete (like you living in your toilet) much less, not being able to breath due to the Chlorine.

Proceed at your own risk.

If it is chlorine...sodium thiosulfate is a very cheap removal agent...approximately $20 to render 1,000,000 gallons of water safe for fish.

If Chloamines are used by yoy water source....the cost would be be about $400 to make that same amount of water safe.

Neither of the water treatment chemicals are considered safe for use with fish intended to be eaten.

That is why I did not mention it. Who would want a pond with fish you could not harvest. Might as well shoot yourself in the foot, it would be cheaper and less painful!

Catfish are some good eats!

thank you very much for all your inputs. i will obvioulsy not put any city water in my pond. my catfish thank you,