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Old 06/15/2021, 03:37 PM   #1
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Join Date: Apr 2020
Posts: 16
Macro algae and chemi pure blue

Does anyone have experience with running both together? I have a 6 months old Nuvo 20 and would like to run cheato for nitrate control (was almost 50ppm before my last large weekly water change.) My only worry is that I have been running chemipure blue (5.5 oz bag) for 4 months and my phosphates have been unreadable. Experience in freshwater planted tanks has taught me that no phosphate=dead plants. Is this the same case for cheato or are ultra low phosphates good enough to grow?

Also i know the first instinct is to say feed less but I would rather try the heavy in heavy out approach than the starve my pets.

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Old 06/15/2021, 03:59 PM   #2
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Join Date: Feb 2006
Location: Spokane WA
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marine algae is very efficient at sucking up phosphate. Usually your problem is getting rid of it. What is remarkable is that a place absolutely green with runaway algae can test zero for phosphate---because all that algae has sucked up all the phosphate and keeping it bound so it can't be read by the test. If your cheato is healthy and green it has the phosphate it needs, and its job is to suck it up and prevent algae from getting any.


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, chromis, royal gramma basslet, tailspot blenny, ocellaris clown, yellow watchman, chestnut turbo snails, bristleworms, couple of hermits.

Last edited by Sk8r; 06/15/2021 at 08:12 PM.
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Old 06/15/2021, 06:21 PM   #3
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Awesome! Thank you! I have chaeto coming this week. Hoping it can suck nitrates down under 10.

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