Frequent Water changes

[vfc]

Here is a chart that shows the difference between daily 5% changes and weekly 40% changes on my heavily stocked 75G. The daily 5% changes will allow the nitrate level to hit 100PPMs while the 40% weekly has a wider nitrate swing but they max out at 86PPMs.

 

[cjs4873]

I change approx 150 litres(RO water) a day, it is trickled in over the 24 hour period 7 days a week, So no big water changes. Easy for me and good for the fishes .

 

[Bderick67]

Here is a chart that shows the difference between daily 5% changes and weekly 40% changes on my heavily stocked 75G. The daily 5% changes will allow the nitrate level to hit 100PPMs while the 40% weekly has a wider nitrate swing but they max out at 86PPMs.

Where did you get these charts, good information. Looks to me that if he increased to 10% daily changes it would blow away the 40% weekly numbers, possibly even 50% weekly change.

 

[midasman714]

I do 1 water change every month. 40 percent. I dont add any chemicals at all. Fish are healthy.

I was guilty of this when i first started out... it may seem like your fish is healthy but they are probably not.

Here is a chart that shows the difference between daily 5% changes and weekly 40% changes on my heavily stocked 75G. The daily 5% changes will allow the nitrate level to hit 100PPMs while the 40% weekly has a wider nitrate swing but they max out at 86PPMs.

interesting chart. I only have one 5" FH in a 75, and everytime i do my daily wc, its w/ a gravel vac so the chart isn't as accurate in my case i would assume.

but again, just testing this out, i may get lazy and start back to 40% weekly changes

 

[vfc]

Your bio-load would probably be less causing a smaller nitrate swing after a water change.

Changing 10% daily (using my tank's bio-load) makes a big improvement over 40% weekly; maximum nitrates 48PPMs vs 86PPMs

 

[nguyenz]

...My fishes are health with 40 percent water changes per month. It could be different results for different setups and filters. Of course less water change more often is better. I can only validate this with what i have experienced.