Water Changes

Thomalop · 12/21/2007, 02:48 PM

I have a 75 gallon tank with a 30 gallon sump. For a total volume of 105 gallons.

Can I do two water changes of ten gallons each and have the same effectiveness of one 20 gallon water change?

Tank is 5 weeks old.

Thanks

Bebo77 · 12/21/2007, 02:54 PM

best to do small water changes every week so that every month it totals 30% changes...

for example IMO on a 100 g system i would do a 10g water change every 10 days ( you will get tired of doing water changes every 4-5 days) lol.. trust me...

BurntOutReefer · 12/21/2007, 02:56 PM

I'm hitting 40% monthly (10% per week)....smaller mor efrequent is better then one large.

dileggi · 12/21/2007, 02:56 PM

Quote:

Originally posted by Thomalop
I have a 75 gallon tank with a 30 gallon sump. For a total volume of 105 gallons.

Can I do two water changes of ten gallons each and have the same effectiveness of one 20 gallon water change?

Tank is 5 weeks old.

Thanks

I just read an article under the "New to reef central look here for answers". It's under the water change link and it discusses doing a big water change vs. several small water changes vs. indeinite water changes. That might help answer you best.

12/21/2007, 02:48 PM	#1
Thomalop Registered Member Join Date: Nov 2007 Location: Columbus, Ohio Posts: 151	Water Changes I have a 75 gallon tank with a 30 gallon sump. For a total volume of 105 gallons. Can I do two water changes of ten gallons each and have the same effectiveness of one 20 gallon water change? Tank is 5 weeks old. Thanks

12/21/2007, 02:54 PM	#2
Bebo77 Premium Nonpaying Member Join Date: Jul 2005 Location: Lost Posts: 14,377	best to do small water changes every week so that every month it totals 30% changes... for example IMO on a 100 g system i would do a 10g water change every 10 days ( you will get tired of doing water changes every 4-5 days) lol.. trust me... __________________ Gabriel Current Tank Info: 300 Gal Envision Tank(98Lx30Wx26T) 120 Gal SoCalCreations Sump, Deltec TC2560, 2 LumenarcsMini 1 Reg on a light mover W Radiums 250& 400, Gallaxy ballasts, Red Dragon 10m3 return W/ 2 WavySeas, 2 6155 Tunze streams

12/21/2007, 02:56 PM	#3
BurntOutReefer Registered Member Join Date: Nov 2005 Location: Granada Hills Posts: 4,376	I'm hitting 40% monthly (10% per week)....smaller mor efrequent is better then one large.