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03/31/2021, 01:17 PM | #1 |
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Raising alkalinity
Hey all,
As of right now my alkalinity is at 6.7 dkh. I want to raise it to at least 8.5 dkh in my 90 gallon. I am using Red Sea foundation alkalinity and unsure of how much to dose in a safe manner. Can anyone be of assistance? Right now my tank is mostly leathers and softies. I want to start introducing lps but want my parameters to be correct first. Thank you |
03/31/2021, 01:19 PM | #2 |
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I wouldn't raise it anymore than 0.5dkh in a 24 hour period.
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Pete "I never make mistakes... I thought I did once, but I was wrong" Current Tank Info: In the process - http://reefcentral.com/forums/showthread.php?t=2661614 |
03/31/2021, 01:21 PM | #3 |
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But how much should I dose at a time for this increase. I followed the directions of 1ml per 25 gallons and have not seen an increase
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03/31/2021, 01:31 PM | #4 |
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From Red Sea web site:
Concentration: Liquid supplement: 1ml will raise the Alk level of 100 liters (25 gal) by 0.036 meq/l (0.1dKH) Powder supplement: 1g will raise the Alk level of 100 liters (25 gal) 0.12 meq/l (0.33dKH) 1 kg will make 10L of stock solution. Using the liquid guide lines, in a 90g tank, you would need to add 18ml to raise it 0.5dkh. 90g/25 = 3.6ml to raise it 0.1dKh. - 0.5dKh is 5 times 0.1dKh so 3.6*5=18ml
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Pete "I never make mistakes... I thought I did once, but I was wrong" Current Tank Info: In the process - http://reefcentral.com/forums/showthread.php?t=2661614 |
03/31/2021, 04:30 PM | #5 | |
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Quote:
Thanks!! Greatly appreciated. my calculations didnt include the multiplication part |
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04/01/2021, 11:47 PM | #6 |
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It says max dose on the back of the bottle on top of the chart
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04/04/2021, 12:01 PM | #7 |
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If your alkalinity keeps falling your magnesium may be too low. Keep your mg about 1400.
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Sk8r Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low. Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%. |
04/05/2021, 05:50 AM | #8 |
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Hi!
Been using Sea Chem Reef Builder to maintain my tank alkalinity (for my inverts - shrimp, urchins, snails, hermits, etc) - similar to Red sea. I mix 1/2 tsp in a cup and dose every THIRD day. My alkalinity has been locked in at 10 dkh ever since I started. My tank is the same size as yours.
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04/07/2021, 07:05 AM | #9 |
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04/10/2021, 01:07 PM | #10 | |
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Alk is now 9.25 dkh Cal is now 432 ppm Mag is now 1289 ppm How much ppm can I increase Mag a day? |
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04/10/2021, 01:43 PM | #11 |
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Honestly, your magnesium is ok. Seawater is around 1300ppm. Start slowly and see what it does. It takes quite a bit of additive to raise magnesium. I highly recommend the BRS magnesium additive (buy an empty jug too) but you can use epsom salts. Use the calculator I linked.
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04/10/2021, 02:09 PM | #12 | |
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