Safest way to perform WC ?

[aclockworkorange]

I've never added dechlorinator, it evaporates out so rapidly in tanks with agitation its not really an issue for a water change less than 50 percent IMHO(and that includes when I change water in my fry tanks too.) I like to add water that is warmer by a few degrees rather than cooler or same temp, seems to negate the shock fish can get from a water change.

Will work if you have low levels of chlorine, not chloramines. Chloramines don't gas off.

Anyone who keeps fish should be in contact with their water company at least a couple times a year. Water sources and amounts of chlorine or chloramine can vary by season.

My big tank takes a good hour to fill for a 50% water change. No way I'd add Prime after it's full, that's an hour of sitting in nasty chlormanine filled water. Most people don't have a holding tank that can handle hundreds of gallons like I change on a WC day, so treating the tanks directly and filling from the tap is currently the best option for me.


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[Jardini 360]

It's on the roof and sealed but not directly from the main water system so the water is already still for about 24 hours which somepeople say is enough for the chlorine to leave the water. Just wanna be safe though.thanks for the suggestions guys !

 

[eklikewhoa]

Put something to agitate the water

 

[DIDYSIS]

I put water into the tank at the same time I remove water then add anything after I'm done. Less stress on the fish as the water level does not change.