Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 06-07-2009, 05:33 PM   #1
Sliced Bread
 
neilanh's Avatar


 
Join Date: Dec 2006
Location: Northern Virginia
Posts: 8,482
Silicates too high, Diatoms return

So, I went through the normal diatom cycle when I first set up the tank. They ran for a while then burnt themselves out. Now, they're back. Water test confirmed silica is elevated in my tank.

How do I reduce them?

I was under the impression that GFO, while removing phosphate, would also remove the silicates too to some degree, but I've been running GFO non-stop and they're coming back. I recently recharged my reactor with fresh GFO, so maybe that'll help.

But, what else can I do? My sand bed is back to looking like dirt.
__________________

__________________
~Neilan
In the DC Metro Area? Check out GWAPA and WAMAS
neilanh is offline   Reply With Quote
Old 06-07-2009, 05:48 PM   #2
Aquarium Advice FINatic
 
Join Date: Jan 2009
Location: Charlton, MA
Posts: 544
What kind of sand did you use?
__________________

__________________
AMDPhenomX4 is offline   Reply With Quote
Old 06-07-2009, 06:34 PM   #3
Sliced Bread
 
neilanh's Avatar


 
Join Date: Dec 2006
Location: Northern Virginia
Posts: 8,482
Aragamax dry sugar-sized oolite
__________________
~Neilan
In the DC Metro Area? Check out GWAPA and WAMAS
neilanh is offline   Reply With Quote
Old 06-07-2009, 08:18 PM   #4
Aquarium Advice Addict
 
thincat's Avatar
 
Join Date: Nov 2008
Posts: 5,330
Neilan, maybe sugar fine is to fine and the silica is slowly leaching out of the bottom layers of your sand? Just a thought...
__________________
Happy Reefing,
TC
thincat is offline   Reply With Quote
Old 06-07-2009, 09:16 PM   #5
AA Team Emeritus
 
roka64's Avatar
 
Join Date: Mar 2006
Posts: 13,860
Send a message via AIM to roka64 Send a message via Yahoo to roka64
I believe some oolite sand can be high in silicates (I think I remember that from geology class). The diatoms should burn them out over time. Until then you may have outbreaks.
__________________
Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

Vote for AA
Good reading about:
Nitrogen Cycle
Fishless Cycling
Need more help?
Articles
Acronym List

--Scott
roka64 is offline   Reply With Quote
Old 06-08-2009, 11:48 AM   #6
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
You say you tested. What were your silica levels? And did you test your fresh salt water? Don't forget... many salt mixes will have silica levels in them that may be considered "high", or at least above normal.
__________________
Kurt_Nelson is offline   Reply With Quote
Old 06-08-2009, 12:21 PM   #7
SW 20 & Over Club
 
ccCapt's Avatar


 
Join Date: Mar 2004
Location: Northeast PA
Posts: 5,362
Send a message via ICQ to ccCapt
I use oolitic sand...I highly doubt thats the source. If you haven't done it yet, I would try changing the DI resin in your RO/DI unit.
__________________
/Larry
125g reef
See My Tank Info
Check out The build project
ccCapt is offline   Reply With Quote
Old 06-08-2009, 01:26 PM   #8
AA Team Emeritus
 
Join Date: Nov 2006
Posts: 3,462
I know people hate algae, but it's a part of life. It will always be there and as you mentioned before, eventually the diatoms will burn themselves out. I disbelieve anything is leaching from the substrate, far stretch imo considering you're using aragonite. Salt mixes that incorporate silica probably do so sparingly and depletes readily imo. As others have stated and probably what you've done by now, check the source water to make sure any resins have not expired and clean up your substrate...you filthy animal.
Innovator is offline   Reply With Quote
Old 06-10-2009, 12:15 PM   #9
Thanx but no.....


 
Join Date: Jun 2008
Posts: 2,333
Quote:
Originally Posted by innovator View Post
and clean up your substrate...you filthy animal.
lol
__________________
CaptainAhab is offline   Reply With Quote
Old 06-10-2009, 12:57 PM   #10
Aquarium Advice Addict
 
thincat's Avatar
 
Join Date: Nov 2008
Posts: 5,330
+1...that's a really nice comment too...LOL
__________________

__________________
Happy Reefing,
TC
thincat is offline   Reply With Quote
Reply

Tags
diatom, diatoms

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Silicates badamsios Saltwater Fish Only & FOWLR 11 01-13-2010 04:09 PM
High Light, High Flow, Slow Growth Corals jonboyb Saltwater Reef Aquaria 9 10-18-2008 03:12 PM
Sand, Silicates and Diatoms?????? greenmaji Freshwater & Brackish - General Discussion 11 08-11-2005 09:57 AM
return of the high phosphate levels kwtowmaster Saltwater Reef Aquaria 15 04-01-2003 06:33 PM
Can someone explain what silicates are MaggiesGame Saltwater & Reef - Getting Started 2 11-02-2002 02:48 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 04:43 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.