how many water changes for a 75 G

[Eti]

Hi guys,

I know the more frequent the water changes are, the better it is.
I have a 75g tank and 5 discus inside and I do about 2 to 3 times per week a 30-40% wc. My question is:

1. Will I grow the discus to their max potential with this routine?
2. I kinda feel bad by changing so much water, i feel I am wasting it. It is REALLY essential to change at least 50% everyday to grow them to their maximum?
3. Has any of you experienced very good growth with less frequent water changes?

Thanks!

[Eddie]

It really depends on how old the fish are, how much/what you feed and your water composition.

[shoveltrash]

+1
there are a lot more factors involved imho - altho I'm not an expert by any means! :)
personally, I do 50% minimum daily on my 75g, and feed 3-4 times a day.....some days when I feed less I do less WC. if I want to skip a day, I feed very little. my Discus have grown from 4" to approx 6" in about 10 months.
how big/old are your fish????

[sandy]

Its not necessary to change 50 or 90 % of water change its depend on you personally I wc 30 % daily feed 5 times BHM pellets flake but in small quantity to retain my water clarity

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[seanyuki]

Imo.....depends what you feed the discus...(commercial foods,homemade foods etc)......homemade foods easily foul the water quality and require water changes after feedings.....I'm just a hobbyist.