Changing water

[michalm]

Hi,

What is better changing water ?

40-50% twice a week or 10-20% everyday ?

My fish eats mostly pellets, so far, that why water is still not perfect. I'm trying get some worms, super worms and frozen food but she is hmm.. little shy and maybe twice time she had eaten something different than pellets. She doesn't like freeze Krill She needs more time to accumulate with new tank (2 weeks with new tank).

Thank you.

 

[AddictedToMbus]

2 weeks aint cycled long enough i say
40%-50% once a week is better, dont over feed with pellets cause what the fish dont eat will just make your water doodoo. what kind of filterage you have? btw youre talkin about arowana right?

 

[krichardson]

There are many variables to consider, most important is your bio load.Is your filtration adequate,how many other fish are in the tank,does your pellets make a mess when the aro eats them,how big is the tank?I do weekly 40 to 50 % changes.Which aro do you have by the way?

 

[michalm]

2 weeks aint cycled long enough i say
40%-50% once a week is better, dont over feed with pellets cause what the fish dont eat will just make your water doodoo. what kind of filterage you have? btw youre talkin about arowana right?

Black Arowana 8-9" + 1 Pleco 12". 180 gal tank.
Filter: WetDry - Mega Flow 4. I turn off my filter when I feeding, and everything what Arowana didn't eat I take out from tank.

Thanks

 

[Bderick67]

20% daily would be far better then 50% twice a week. Not only are you changing a larger total volume of water 140% vs. 100% but you are removing the nitrates sooner so they do not accumulate.

 

[AddictedToMbus]

he only has 2 fish in the tank 20% daily would be waste water

 

[perfect_prefect]

it may be waste water but i bet his nitrates would stay below 10ppm at all times and never go above that but if he does one change once a week they will build up to say 15 ppm then change the water and be down to 5ppm then changed again at 15. where if you do daily (wish i had the time) 10% changes (balances to 70% of total in the week. so better than one single 50%) you will keep the level in the 5-7ppm range. so it will stay steadier.

all numbers estimate

 

[AddictedToMbus]

hes talkin about a 180 now

 

[sodenoshirayuki]

It might be a waste, but better to do more, than to do less and have the aro die. 20% daily is perfect. Not too much not too less.

 

[michalm]

It might be a waste, but better to do more, than to do less and have the aro die. 20% daily is perfect. Not too much not too less.

OK, that sounds good for me. Water I have for "free" because I live in Condominium. I paid for water in my monthly fee

Thanks for everyone !