Water change emergency

TwoShoesOrOne · 06/20/2019, 01:42 PM

HI.

Could someone please let me know how much water I can change in a mature tank. For instance. Could I do a 50% change two days in a row?

Is there a rule for X% changes in Y days?

Thanks

Tripod1404 · 06/20/2019, 01:44 PM

You can do whatever you want. Just make sure the alk of the water you change with is close to the alk of your tank water. Otherwise the rapid alk change can stress the corals.

ThRoewer · 06/20/2019, 02:01 PM

I've done 90% water changes without complications.

DougSupreme · 06/20/2019, 02:07 PM

pH is more important. pH, temp, salinity and you should be good

Sent from my SM-G965U using Tapatalk

TwoShoesOrOne · 06/20/2019, 02:22 PM

GREAT INFORMATION

Thank you very much

Crooked Reef · 06/20/2019, 04:00 PM

Ph swings throughout the day. If you make your water correctly the ph, salinity will match or at least be close enough to be fine. A big alkalinity swing can and will kill some corals.

06/20/2019, 01:42 PM	#1
TwoShoesOrOne Registered Member Join Date: Jun 2019 Posts: 37	Water change emergency HI. Could someone please let me know how much water I can change in a mature tank. For instance. Could I do a 50% change two days in a row? Is there a rule for X% changes in Y days? Thanks

06/20/2019, 02:01 PM	#3
ThRoewer Registered Member Join Date: Jan 2015 Location: Fremont, CA Posts: 9,555	I've done 90% water changes without complications. __________________ Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio 3 P. diacanthus. 2 C. starcki Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...

06/20/2019, 02:07 PM	#4
DougSupreme Registered Member Join Date: Oct 2003 Location: Illinois Posts: 1,226	pH is more important. pH, temp, salinity and you should be good Sent from my SM-G965U using Tapatalk __________________ Intelligence is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad Current Tank Info: 75g mixed reef

06/20/2019, 04:00 PM	#6
Crooked Reef Registered Member Join Date: Feb 2014 Posts: 1,765	Ph swings throughout the day. If you make your water correctly the ph, salinity will match or at least be close enough to be fine. A big alkalinity swing can and will kill some corals. __________________ “In wine there is wisdom; in beer there is freedom, in water there is bacteria.” - Benjamin Franklin Current Tank Info: 90 gallon reef. Biocube 29 lionfish tank. Mantis tank.

06/20/2019, 01:44 PM	#2
Tripod1404 Registered Member Join Date: Mar 2016 Posts: 1,821	You can do whatever you want. Just make sure the alk of the water you change with is close to the alk of your tank water. Otherwise the rapid alk change can stress the corals.

06/20/2019, 02:22 PM	#5
TwoShoesOrOne Registered Member Join Date: Jun 2019 Posts: 37	GREAT INFORMATION Thank you very much