When you change your saltwater tank how much % of it should you change?

Question

thanx

Answer 1

It actually depends on what is happening within your tank. 10% is the norm with everything happening as it should be, and it should be done weekly simply due to the fact that there are trace minerals within the salt mixture that marine life needs in order to survive.

If you are having issues with ammonia or nitrite your going to want to do a larger percentage of a water change in order to reduce the amount of toxic chemicals within your water column. This in conjunction with figuring out what caused the increase in these toxic substances is necessary.

If you have high nitrates you are going to want to increase the frequency of your water changes and the percentage of water your change. Then add something that will aid in nutrient export such as a macro algae.

On these later two once you get your parameters back under control you can proceed with the 10% weekely changes.

You can read more at the below listed link.

Answer 2

Typically in most aquariums, you should only change 10% of the water at a time or within a month. Anymore than that can shock the environment. You should change a percentage of water regularly especially in salt water tanks because of evaporation. This causes a concentration of salt, which does not evaporate and can lead to an over abundance of salt in the water. In adding water, it should not have salt because the solidified salt already exists. However if you are removing salted water, check the PH to ensure the level of salt is correct.

Answer 3

Depends on the frequency,lots of little ones are better than fewer large ones.

Answer 4

10-20% a couple of times a week

Answer 5

about 50 percent..