Water change interval question ?

[sconstant]

I was wondering if I should be doing weekly/bi weekly water changes to my 90 gal which has only been set up for a month ? It cycled in a week and levels seem right where they sdhould be.

 

[mnavick]

Seems very quick for a cycle.
Did you use already established live rock and sand?

If not did you see your ammonia spike then come back down?

Water changes vary depending on bio-load and or trace elements being used.
I have a 150g with a medium bio-load and do bi-weekly changes. But I also have a Calcium Reactor to help maintain proper levels (calcium primarily).

 

[sconstant]

I had rock and sand from a friends tank and ammonia spiked then went down to zero as well as nitrites. I am buying a calcium reactor this week.

 

[mnavick]

How heavy into corals do you plan on being?
Calcium Reactors are usually not required right out of the gate.

 

[sconstant]

Yes your right not going that route I have a few that's about the extent of it until I get a handle on all of this.

 

[mnavick]

Back to your original question, keep all your parameters in check especially being a "young" system and maybe start with bi-weekly water changes until you notice things get worse.
Just keep your bio-load small and take your time until all the beneficial bacteria has a chance to mature

 

[sconstant]

I really appreciate the input, Thanks.

 

[cilyjr]

Here's an article you may find useful
http://reefkeeping.com/issues/2005-10/rhf/