How often water change?

[flip_mode]

same usually 10% every week on the same day on all tanks

 

[nigaharu]

My rule of thumb is 50% every week no matter the stock or size of tank.

+1

 

[Spiritofthesoul]

My rule of thumb is 50% every week no matter the stock or size of tank.

Gonna be hard to do with a monster tank without increasing water bills. I usually do between 10-20% weekly depending on my nitrate level. As long as it is below 20ppm, I'm fine with it.

 

[Nim Dibbley]

I do 20% weekly. I think the best thing to do would be to buy a nitrate test kit and see where your nitrates actually get to after a week with a 10% water change. If that number gets too high up it to 20% the following week, etc.

 

[Andrewtfw]

I change 50% weekly on all of my tanks. The water parameters are more stable this way because there is not enough time for waste to build up and impact ph or nitrate. I also overfilter my tanks (fx5 on a 75g, Fluval 405 on a 25g). Nothing leads to better health and longevity than large, frequent water changes.

 

[crisper]

Need more infomation

• Stock size
• Tank size
• Heavily planted/Planted/Non-planted
• Nitrate levels in tap water
• Nitrate levels of tank water

Basically you just calculate how much nitrate raise each week and do the amount of water change to reduce that nitrate level back to where it was last week or lower

Exactly what Spirit of the Soul said,also depends on how heavy you feed.

 

[sheajared]

i do about 40% every week for my RBP

 

[J.Lake]

50 percent weekly on my tanks. the rays get a lil more sometimes

 

[predatorfish1]

I do a 75% water change every 2 weeks

 

[JustinDavis]

Gonna be hard to do with a monster tank without increasing water bills. I usually do between 10-20% weekly depending on my nitrate level. As long as it is below 20ppm, I'm fine with it.

Of course I would change my tank cleanings once I get the monster tanks