doesnt drop that much....it takes a long time for a larger body of water to decrease in temp..in a decent sized lake or river you might...just might see a couple degrees in temp difference...not much more than that cause water moves around dispersing the temp...But a temp change like that could be very bad if you have ich in your tank right? I'm assuming you either managed to get fish that didn't have it or you've already been through a bout with it and have killed all of it off. Or am I just dead wrong about quick temp changes making fish more susceptible to diseases like ich?
in the wild how much do you think the temp drops over night
I add a bit of boiling (1 ltr to 9 ltrs of cold) and check with my hand that it's roughly the same temperature, dechlorinate, then dump. Having young children in the house there would be nowhere safe to leave buckets of water standing around all night.
Since it is well known that adding cooler water encourages many egglayers (such as cories) to spawn, I think we may deduce that the coming of the rains does bring about some sort of change of temperature in the wild, though it may not be enormous. Then again, the temperature drop from adding 20% of tap water is not likely to be that enormous either; it hardly comes out of the tap at freezing temperatures.
Still, I carry on boiling my kettle; it is after all little effort and there is usually something left over for a cuppa!
yea but thats gradual change.
if i jus stick my hose in the tank the water from my hose is damn near freezing here in the UK.
maybe if i jus refill really slowly with the hose.
its not really something i jus wanna try out tho.
think ill stick to my original plan now. buy a decent size bin, fill it with water, chuck a heater in and then wait a few hours and do the water change.