Backyard Aquaponics
A place to discuss aquaponics

chlorine can be removed by aeration.

do you have any rough figure for amount of aeration req for a certain amount of water Rix? and the amount of time ....

Maybe thats why I have been ok.

should make the destinction of chlorine VS chloramine.

chlorine can be off gassed by looking at it with a scowl

airation, boiling, letting it stand for a day, even putting it through the blender on high for a few mins will get the job done.

not so with chloramine.

PS Food and fish, didn't you say we were on chloramine? i must be at a different dosing point to you, i looked up our water co and we're on chlorine

Chlorine rapidly dissipates from water,but It depends how much chlorine you have in your water and how much aeration you are putting into the water. a 200l drum of water will take 2-3 days to dissipate all chlorine WITHOUT aeration.
you might want to put in a "water ager" (sodium thiosulphate) chemical to remove the chloramine which is just as bad for fish, Chlorine reacts with nitrogen componds in the water to form mono. di or tri chloramines. The more chlorine, the more it is pushed towards the trichloramines. All chlorinated water supplies contain chloramines.

im not too sure what sodium thiosulphate does to plants tho ?

Yes Rix, due to the fact of the chlorine reacting with trace ammonia from nitrogen containing compounds.

But that is not the same as the water supply being dosed at 2ppm chloramine at the source by the combination of chlorine and ammonia

so....just ignore the chlorine because it rapidly dissipates and add water ager to remove the chlorine. but what side affects is there on plants/ human health from the sodium thiosulphate?
im guessing that it would be ok for the plants because people use it in planted aquariums. but im not too sure i would want to consume it, might have some weird looking babies in a few years lol
some people that i know dont even use water ager, they just leave it as is. and they havent had any problems with there fish.
is 2ppm enough to affect fish anyway?

i mean chloramine

I havent dosed with water ager for 6 months just top up out of the hose Reminds me havent tested for a while after i did that big water change and nothing happened i just got slack

If allowed to out gas the chlorine shouldn't be too much of a problem but both chlorine and chloramine can damage your micro herd if not dealt with before adding to the system.

I think something like a britta filter will take care of chloramine as well as chlorine. At least that is what was recomended for making bread. I don't know that one small britta could handle enough water daily to take care of much of an AP system though.

I do that (aging the water). Took longer than usual probably because the water was colder. Normally it smells clean after about four days, this time it took much longer. Aerated by mixing it and it still smelled like a swimming pool. BTW, smelling it doesn't work when you hab a code.

If all the water is at 2ppm of chlorine or chloramine yes it will effect your fish's ability to take in oxygen until it dissipates. Not counting how bad it will attack your microbe population.

If you are adding 20 gallons to a couple hundred gallon system it probably wont make much of a difference.

At .5ppm + it zaps microbes pretty good.

BTW most municipalities in my part use chlorine gas injectors to add water to the system so it dissipates quicker, but most of the smaller water systems use chlorimine to dose their systems because it last longer in the system and is more stable to handle.

right or wrong thats the philosophy i use

even at max doing of 2ppm, i'm adding say 100L to 1000L so the final chlorine ppm will be .2ppm

problems arise with people with small system volumes.

The reason alternatives are being discussed is that i feel people aim to make their systems as natural as possilble and would like to use any method other than dosing with this and that.

I would worry about the bacteria more than the fish. Would be a PITA to kill your bacteria population from impatience.

I am also looking for ways of not adding this and that. It's good that our water doesn't use chloramine and up to now the P word has been enough for the top-up water. Vitamin C could be the feel-good way to dechlorinate in a hurry.

utimate way would be to have 200L drum always filled with water for a top up

i'm looking at having 60L of marine water made up in the house for reef water changes.

My top-up pipeline consists of two 130L tubs, one is the active top-up water and the other is separated by a couple days. Wiped out one to clean the bed gravel and that led to the shortage.