I'm sorry but this is going to be a long boring post.
I have a 29gal tank and do weekly PWC
. I'm concerned about the change in temperature when I add cold water to the tank. My local water supply is supposed to have lots of pesticides and fertilizers in it. Because of this all of the water I put in the tank goes through the 1st 3 stages (activated carbon) of my RO
system. The RO
system taps straight into the cold water under the sink. So I have only cold water to add to the aquarium. I have tried a few different ways to avoid temperature shocking the fish.
1. nuking some of the water to bring up the temperature. This takes a lot of work and time, and just didn't seem to work very well.
2. adding only a little water at a time. This seems to work decent but leaves the tank half finished for most of Saturday. And I try to leave the water out for a few hours to get up to room temperature. Especially with winter coming (it snowed this morning) room temperature is somewhat less than the tank temperature.
I would like to buy an inline heater and power head (or pump). Then I could heat up a bucket full of water and then pump it straight into the aquarium - this is also easier than trying to pour a bucket into the tank without disturbing it. But this would cost more than my wife is willing to let me spend.
Does anyone else have any ideas for this problem? And my other question is how large of a change in tank temperature is OK? Will only 2 degrees even affect the fish?