Water change

jasimek · 04/24/2012, 07:36 PM

After a water change my mag was at 1200. Should I stop dosing calcium and alk via brs doser until I can lock the mag in at 1300-1350? Cal currently at 400 alk at 9.2 dkh

bnumair · 04/24/2012, 07:56 PM

mag can be increased in 1-2 days, I have read to limit increasing by 100ppm. so even if u were to increase 100 today u will be in fair range. also its wise not to dose cal and alk and mag at same time. dose with an interval of atleast 12 hrs in between.

jasimek · 04/24/2012, 08:01 PM

What's the reason for not at the same time?

jasimek · 04/24/2012, 08:07 PM

I have the doses for cal and alk hooked to my reefkeeper elite. They have been set for about 12 minutes repeating 4 times per day on each....I don't know how I would achieve 12 hours apart unless I dosed a large amount all at once

bnumair · 04/24/2012, 08:23 PM

The goal is to not have them interact significantly before being diluted in tank water. Separating them physically can work, as does time separation. Also, the less you add at once, the smaller the concern.

jerseygurl · 04/25/2012, 06:53 AM

Yes, you should lock in your mag first, as you raise it both alk and cal should go up. After mag is correct you can adjust your alk and cal levels.

04/24/2012, 07:36 PM	#1
jasimek Registered Member Join Date: Oct 2011 Location: Plainfield, Illinois Posts: 692	Water change After a water change my mag was at 1200. Should I stop dosing calcium and alk via brs doser until I can lock the mag in at 1300-1350? Cal currently at 400 alk at 9.2 dkh

04/24/2012, 07:56 PM	#2
bnumair Dr. Reef at ur service Join Date: May 2009 Location: Tulsa, Ok, USA Posts: 7,751 Blog Entries: 15	mag can be increased in 1-2 days, I have read to limit increasing by 100ppm. so even if u were to increase 100 today u will be in fair range. also its wise not to dose cal and alk and mag at same time. dose with an interval of atleast 12 hrs in between. __________________ Water Quality: NO3 0,Phos 0,Cal 440,Alk 7.5,Mag 1300 "Reef Fast, You Crash, Reef Slow, You Pass" Mike's Reef 3:16 Current Tank Info: 350g DT,95g sump, 50g Frag tank, 4800gph return 4x Sea swirls. 6x AI Vega Color. 200# Pukani rock, dual recirculating skimmer, Biopellet, GFO Carbon rx's, Cal rx. Closed loop. 1.5hp chiller, genesis renew. Apex & RKE

04/24/2012, 08:23 PM	#5
bnumair Dr. Reef at ur service Join Date: May 2009 Location: Tulsa, Ok, USA Posts: 7,751 Blog Entries: 15	The goal is to not have them interact significantly before being diluted in tank water. Separating them physically can work, as does time separation. Also, the less you add at once, the smaller the concern. __________________ Water Quality: NO3 0,Phos 0,Cal 440,Alk 7.5,Mag 1300 "Reef Fast, You Crash, Reef Slow, You Pass" Mike's Reef 3:16 Current Tank Info: 350g DT,95g sump, 50g Frag tank, 4800gph return 4x Sea swirls. 6x AI Vega Color. 200# Pukani rock, dual recirculating skimmer, Biopellet, GFO Carbon rx's, Cal rx. Closed loop. 1.5hp chiller, genesis renew. Apex & RKE

04/24/2012, 08:01 PM	#3
jasimek Registered Member Join Date: Oct 2011 Location: Plainfield, Illinois Posts: 692	What's the reason for not at the same time?

04/24/2012, 08:07 PM	#4
jasimek Registered Member Join Date: Oct 2011 Location: Plainfield, Illinois Posts: 692	I have the doses for cal and alk hooked to my reefkeeper elite. They have been set for about 12 minutes repeating 4 times per day on each....I don't know how I would achieve 12 hours apart unless I dosed a large amount all at once

04/25/2012, 06:53 AM	#6
jerseygurl Registered Member Join Date: Mar 2012 Posts: 329	Yes, you should lock in your mag first, as you raise it both alk and cal should go up. After mag is correct you can adjust your alk and cal levels.