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Unread 06/22/2018, 05:35 PM   #1
Bergvid
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Randy’s Recipe

I use randy’s recipe and have calcium carbonate ppt in my sump and on equipment. I dose 1 hr apart I’m thinking of changing to ATI essentials because I’m dosing over 300mL all per day to keep my alk over 7. I checked mid day yesterday alk was 8.7 and this morning it was 7.2. Is this jump big enough to cause necrosis on the tips of my acro? Lost my blue ten and tip of milli. My calcium was 411 and mg 1500

Tank is reefer 525xl 2x mp40s on full lagoon mode, 3x Radions just at a loss what I’m doing wrong with acro. LPS are fine


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Unread 06/22/2018, 10:08 PM   #2
bertoni
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I would try dosing into the main display, if you're not already. Sumps often are too small to handle the load. Dosing more slowly or switching the the recipe 2 low pH formula might help, too.


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Unread 06/22/2018, 11:00 PM   #3
Bergvid
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Quote:
Originally Posted by bertoni View Post
I would try dosing into the main display, if you're not already. Sumps often are too small to handle the load. Dosing more slowly or switching the the recipe 2 low pH formula might help, too.
Thanks, I have a dosing pump that goes into the inlet from the main display so it's a high flowing area. In the display I have a heater since the 2 I have in the sump are unreliable atm. The heater in the display has CaC03 ppt all over it, I assume this is from the heat (no ppt on the display glass, perhaps a little in the vortechs). I guess all I can do is try alternative products.

For perspective i'm dosing 350 mL of alk and 300 mL of calcium daily. Not sure how these figures stack up with others that have a similar volume?

Additionally is my alk swing something that could cause necrosis? I'm trying to find the source of the problem my understanding is anything over 7 is fine but when it's a daily swing of 8.7-7.2 i'm unsure.


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Unread 06/23/2018, 06:05 AM   #4
mcgyvr
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Quote:
Originally Posted by Bergvid View Post

Additionally is my alk swing something that could cause necrosis? I'm trying to find the source of the problem my understanding is anything over 7 is fine but when it's a daily swing of 8.7-7.2 i'm unsure.
Yes that kind of a swing can absolutely cause problems...
Typically people recommend no more than a .5 to 1 dKH swing in 24 hours..

Do you not just dose multiple times a day? Thats best to avoid any swing..
Split the daily dosage into 4 smaller doses (or more if you want)..
That can certainly help too as you aren't dumping in so much at one time..


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Unread 06/23/2018, 07:03 AM   #5
Bergvid
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Yes that kind of a swing can absolutely cause problems...
Typically people recommend no more than a .5 to 1 dKH swing in 24 hours..

Do you not just dose multiple times a day? Thats best to avoid any swing..
Split the daily dosage into 4 smaller doses (or more if you want)..
That can certainly help too as you aren't dumping in so much at one time..
Yeah of course i do 7 small doses through the day, maybe i should include night time into this period


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Unread 06/23/2018, 07:07 AM   #6
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Originally Posted by Bergvid View Post
Yeah of course i do 7 small doses through the day, maybe i should include night time into this period
You should spread them out to ensure no more than a .5dkh swing between any dose...
That way your alk will stay stable..


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Unread 06/23/2018, 07:20 AM   #7
Bergvid
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Originally Posted by mcgyvr View Post
You should spread them out to ensure no more than a .5dkh swing between any dose...
That way your alk will stay stable..
Noted! Thanks i will increase the gap between my doses and spread it out into the night


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Unread 06/23/2018, 02:32 PM   #8
bertoni
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I agree that smaller doses spread over more time probably are a good idea.


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