Water changes on a 125G Tank - Need some advice!

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H2O_Beasts

Feeder Fish
MFK Member
Mar 3, 2010
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Arizona
I am getting ready to setup a new 125G freshwater tank :headbang2.

This is the biggest tank I have owned (had a 55G prior to this) and I am not sure yet how to handle water changes. I used the 5G bucket method on my old 55G but don't think that will be very efficient on the 125G :eek:

I will be running 1 FX5 for filtration.

What would be the best way to do water changes? Would you recommend I purchase a python? If so, when would I add the water conditioner (dechlor)?

I have 1 Rena 200W heater. Would adding one more Fluval 200W heater be enough so I would have one heater on either side?

Any advice is appreciated!
 
2 heaters that size =fine .as far as water changes I use the bucket method, but a python (tho expensive)saves work.GOOD LUCK ps add dechclor as soon as you get water in the tank.let the dechlor work for a couple of minutes then turn on any seeded filters you have on the tank ,any unseeded filters can be turned on before or after dechlor , my advise is to usePRIME for dechlor on aNEW tank , it detoxes amonia and nitrites.
 
I do 60% water changes on my 125 and 55 every sunday with a bucket, really not very time consuming, bout 15 min to get the water out and a half hr to fill it back up, its a good way to spend sunday watching football, I add dechlor to each individual bucket as I fill the tank back up
 
I do 60% water changes on my 125 and 55 every sunday with a bucket, really not very time consuming, bout 15 min to get the water out and a half hr to fill it back up, its a good way to spend sunday watching football, I add dechlor to each individual bucket as I fill the tank back up

Thanks, that is exactly what I did on my 55Gallon. I might look into getting a python to make it a little quicker.
 
2 heaters that size =fine .as far as water changes I use the bucket method, but a python (tho expensive)saves work.GOOD LUCK ps add dechclor as soon as you get water in the tank.let the dechlor work for a couple of minutes then turn on any seeded filters you have on the tank ,any unseeded filters can be turned on before or after dechlor , my advise is to usePRIME for dechlor on aNEW tank , it detoxes amonia and nitrites.

Thanks for the tip on the dechlor! What heater do you think I should go with?
 
Python is totally worth the price. I used to clean my 125 with buckets (barrel actually) until a friend turned me on to the python. i have one for every tank now :)
 
i siphon 50% of the water out my window with a piece of 1" hose (1" hose drains it SUPER fast) every weekend.

add prime to the tank water (<-no need to dechlorinate if you have well water because well water doesn't have chlorine) and refill. i have a hose hooked up to my utility sink for refilling. takes me way longer to fill than it does to drain. make sure the water going in is very close or = temp as water in the tank to avoid shocking the inhabitants.

i have a python too but i never use it because my setup is easier and faster, ymmv.
 
You can siphon out the water, add declor to your tank for the amount you took out, and add water to your tank. I reccommend doing a chlorine test before to see if your municipal water is high in chlorine. It might not work too well for you if it is.


When I had my 125, I was able to remove and add simultaneously because my city water never had chlorine in it unless itwas raining. Who does water changes when it rains anyways?
 
Python is by far the easiest way. I have mine setup to attach to one bathroom faucet and I just move it from tank to tank.

Prime is good stuff but Safe is more cost effective. Same thing in a powdered form. 1kilo costs about0 30-35 shipped and will last me about 15 years on 500 gallons running right now. Somewhere around $2-3 per year for water changes
 
Thanks for all the great feedback. I think I will list the 50ft python on my Christmas list!

Can anyone recommend a nice reliable 200W or 300W fully submersible heater?
 
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