Water changes

[carajito]

I did some water testing on my New fresh water tank (3 weeks old) and i got 0 nitrates , i know what needs to be done in a salt water tank but i need some directions about water changes on frech water


50% change or less ?
new clean water needs to be declorified before mixing in the tank and let it sit for how long ? or just use a hose directly to the tank and declorine right after ?

once a month or a week ?

on my salt water tank i change it every once a year but i use a big nitrate remover and a big protein skkimmer

im clueless

Thank you

 

[carajito]

bump

 

[groovitudedude]

If you have good tap water, then up to 85%. If you have hard tap water like me, it's better to do 50% or less. Also, if you have very delicate fish, it's a better idea to add the dechlorinater before adding the water. If you have hardy fish, though, it's fine do add the water then the dechlorinater. What fish do you have?

 

[carajito]

Silver Arowana 6-inches and two smaller ones

 

[rallysman]

First make sure it's cycled. What are the ammonia/nitrite readings?

 

[carajito]

0/0/0

 

[carajito]

i did the cicle with small fishes for about two weeks and then when the nitrites went down i bought the aros


in salt water is like a moth or so but i test the water almost every day until im sure is cicled and it was

 

[rallysman]

0/0/0 sounds to me like it's not cycled.

The end result is nitrate and you should have a measurable amount. Either your tank is not cycled or your test kit is wrong.

 

[carajito]

it shoed amm the first 4 days , then nitrite but since is a 55g with 3 small gupies it wont show nitrate yet , now with the aro it will in a few days for sure , the tanks is only 4 weeks old

 

[carajito]

i used Bacter Vital . everything seams ok , my question is how often should i make water changes and if i can do it the simplest way wish is hose in the tank and the declorifier , or it has to be prepared on a diff container and let it sit for a while?