How often and how much...

[Fawke]

Hey daisygirl, count urself lucky, our tap water comes out at 35-40ppm!!!!

 

[mrV]

Have you think about having RO-unit?

 

[Ahmad]

Well I have all kinds of fish so it depends on whats in the tank

In my 55g goldfish tank...I do 50% water changes every other day Since there not cleanist fish around lol...but I love yem!

In the other 4 55gs I do 50% water changes/Vacs. everyweek. Everytime I do that the fish are more active and the water is sparkling! it also helps the filters out

In my 29g I do 40% water changes every week.
In my 20g I do 30% water changes every week.
In the 75g I am going to do 50% water changes. (Its in its first week lol)
Once the 125g Is complete...well I dont know yet

 

[clutterydrawer]

20% once a week if I can get away with it, cos my dad hates me doing water changes cos he thinks it kills the fish. So sometimes I have to skip one. I try to do it while he's out though.

 

[WheelmanCA19]

At the moment 20-25% once a week on my 20gallon.

 

[Fiddlesticks]

I do both mine every week. About 20% in the 60 and 10-15% in the 20.

 

[Fawke]

RO Unit???, no, not really, my Water/C brings it down to 25, still a tad high tho.....

 

[nmarc3627]

10% once a week in my 10 gallon

 

[blakwidoe]

I do a 25-50% water change in all my tanks once a week.

 

[~FairyAngelFish~]

Well for the first time in like... months I changed the whole thing, and once a week I normally change half the water.

 

[canarsie11]

75 gallon tank twice a week. 25 to 30 percent

10 gallon tank twice a week 10 to 20 percent

Sometimes I will do extra one on 75 gallon. I work at home alot, tank in my office, bathroom close by and python. Very easy both tanks in aboout 12 min, maybe not that long.

 

[juliethegr8t]

Let's seeee here... These are mostly gravel vacs too..

10 gallon - 20-25% twice weekly, I've got Mister Sensitive the Gold Ram in there.. so I'm extra careful, plus the danios are dirty pigs
2.5's - 40-50% weekly
6 & 3 - apprx. 20% weekly
5.5 (fry tank) - daily 20% (or more)
betta tanks - 40-50% twice a week, with turkey baster

 

[kent]

i do 10-20% water change in my 30 gallon once a week. I monitor my water parameters to see if I need to make more water changes.. Three weeks ago, my ammonia and nitrites were out of control and I had to do 3 water changes in 12 hours.

 

[mrV]

RO Unit???, no, not really, my Water/C brings it down to 25, still a tad high tho.....

Didn't you wrote earlier that in your tap water NO3- level is about 40mg/l? Probably I undesrtood it wrong...

RO = reverse-osmosis (it purifies water).

 

[Fawke]

MrV, do you have any more info on this? I have done a google search but better from the horses mouth hey ?
Wat does it purify? presumably Nitrates? does i need to be left standing over nite or anything?

Cheers