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 09-27-2005, 05:45 AM   #1
Aquarium Advice Apprentice
 
Join Date: Sep 2005
Location: SYDNEY, AUSTRALIA
Posts: 23
Phosphate never wants to drop???!! HELP!

Hi ppl,

I don't know why I can't get the phosphate to reduce, I think i've tried everything. I've placed Aquasonic sponges in my canister filter, then I've made several 20% water changes. I've got a skimmer that's working fine (It's producing heaps of bubbles).

I also cleaned my canister filter and the mini reef system from all debris... Tested my tap water with no or very very little trace of phosphate.

Does anyone know of any other ways to reduce the phosphate (other than starting from scratch!)???

phosphate: 3.0
nitrate: 20
cal: 450-500
alk: 160
ph: 8.0-8.1
everything else is normal
__________________

__________________
usaco is offline   Reply With Quote
Old 09-27-2005, 09:58 AM   #2
Aquarium Advice Activist
 
Join Date: Jul 2005
Location: Oklahoma
Posts: 123
I would suggest using RO/DI water. Could it be that there are nutrients in your Tap that are adding to the Phosphates once in the tank?
__________________

__________________
MyMonkey is offline   Reply With Quote
Old 09-27-2005, 07:43 PM   #3
Aquarium Advice Addict
 
Join Date: May 2004
Location: Poughkeepsie, NY
Posts: 3,294
If you have any PO4 in your tap your just adding it back to the tank every time you top off. ro/di is the way to go... a phosban reactor will work well also. But if you keep using tap water you will burn through the phosban fast and will be changing that out every month.. RO/DI .....
__________________
9/02-125 REEF, 125 lbs LR,LS 4x160 VHO, Reef Devil /Sump, Fuge
7/03-55 FOWLR 60lb LR, 50 lb SD sand 2x40 NO strip light, Reef Devil/sump, Fuge

TANK PICS http://www.aquariumadvice.com/viewtopic.php?t=98202
seaham358 is offline   Reply With Quote
Old 09-27-2005, 08:35 PM   #4
Aquarium Advice Activist
 
Join Date: Jul 2005
Location: Monterrey, Mexico
Posts: 113
Start using RO/DI with your weekly 15% water changes plus 1 or 2 oz. of Phosban and in 3 to 4 weeks you should have 0 PO4s if not then you are most probably overfeeding...
__________________
Homero Cuellar
hcuellart is offline   Reply With Quote
Old 09-27-2005, 09:17 PM   #5
Aquarium Advice Freak
 
Join Date: Feb 2005
Location: MA
Posts: 494
Question, which may actually help with usaco's issue...

... I'm having a similar problem and I AM using RO/DI (My TDS out of my RO/DI is 1ppm - I'm assuming that's acceptable) and am only feeding a small amount every other day. I'm also running phosban and I have (had, it's now dead) some chaeto going in my fuge. My PO4 will not drop under 0.5. I've heard of certain rocks leaking PO4. Is there a possiblity that some rock rubble that I got dry from a lfs is leaking PO4? It's the only thing I can think of.

usaco, could there be another source of your PO4? Maybe a rock of unknown origin?
__________________
SkinnyPete is offline   Reply With Quote
Old 09-27-2005, 10:12 PM   #6
Aquarium Advice Addict
 
lando's Avatar
 
Join Date: Mar 2004
Location: Savage, MN
Posts: 7,889
PO4 is also introduced via food. If you feed frozen food you should rinse it in RO/DI water first to get rid of the toxic "juice" that is produced when it thaws.
__________________
Some people are like slinkies...they serve no real purpose yet can still bring a smile to your face when you push them down the stairs!:p
Have a great day! Brian
lando is offline   Reply With Quote
Old 09-27-2005, 10:33 PM   #7
Aquarium Advice FINatic
 
MarineFlake's Avatar
 
Join Date: Mar 2004
Location: Memphis, Tn
Posts: 816
The use RO/DI is a typical and justified response. However, some tanks due to long term PO4 issues must take further measures. Obviously, changing water with high concentrations of PO4 only exacerbates the issue. So, the golden rule does apply. However, take it from me, ro/di from day 1, you can still have plenty of po4 issues. Mine resulted in the unsightly hair algea. I used RowaPhos and 2 little Fishes PhosBan. PhosBan IMO is the best. This stuff *will* lower your PO4 quickly if used proper. I read on another site (Maybe WetWeb, B Fenners stomping grounds) about 'embedded PO4 issues. Where as the PO4 has been prevelant in a tank for so long, its practically everywhere. Changing water helps...helps stirr up more PO4 bound to other things in the tank. With that in mind I did begin using a 'sponge' and did acheive much lower levels of PO4. However, my tank is loaded, though I do not feel over loaded. Everyones scenario is a tad diff, so I'll go out on the 'limb' and say if you have used RO/DI and its testing clean, back off your feedings. (In my case, I had to make special arrangements for my tang. You can and will starve your tang if you have one, by placing them on a too stringent schedule of feeding. They are grazers and must be fed as such. So, please do not starve your fish to death in order to fix your PO4 issue ) I know its hard cause there they are everyday up against the glass waggin their tails at you begging. But believe me, your never going to get anything lowered if you don't enforce the change. (Also make sure your spouse isn't doing you a favor and double feeding...) Anyway, after cutting back on the food, I used, as stated, a PO4 sponge. This made a very big dent in my PO4 issue. PO4 was like 5 plus ppm and dropped to about 0 in a month or so. My next issue, lowering my Nitrate..over 25ppm. Working on that with a couple methods however, like it or not, water changes are still the best way.

GL!
__________________
To fail to plan is to plan to fail.
MarineFlake is offline   Reply With Quote
Old 09-27-2005, 11:45 PM   #8
Aquarium Advice FINatic
 
Join Date: Aug 2004
Location: Miami, Fla
Posts: 649
Thanks so much Lando, I had the algae bloom of the century and it occurred right after I introduced frozen food to my tank. I stopped using it and was going to write to the manufacturer, but now I know the true issue.
__________________
Failing to prepare is preparing to fail.
-anonymous
seafan is offline   Reply With Quote
Old 09-28-2005, 12:35 AM   #9
Aquarium Advice Apprentice
 
Join Date: Sep 2005
Location: SYDNEY, AUSTRALIA
Posts: 23
Quote:
Originally Posted by SkinnyPete
usaco, could there be another source of your PO4? Maybe a rock of unknown origin?
Maybe??!! All rocks are bought from my LFS
__________________
usaco is offline   Reply With Quote
Old 09-28-2005, 12:41 AM   #10
Aquarium Advice Apprentice
 
Join Date: Sep 2005
Location: SYDNEY, AUSTRALIA
Posts: 23
Thanks everyone for the tips.. I'll let u all know how it goes..

More tips are welcome..
__________________

__________________
usaco is offline   Reply With Quote
Reply

Tags
drop, phosphate

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
pH drop? bluerose Freshwater & Brackish - General Discussion 44 10-06-2008 04:06 PM
PH drop cobb12 DIY Projects 4 08-03-2008 01:47 AM
KH Drop dr_girlfriend Freshwater & Brackish - Planted Tanks 9 03-18-2005 01:27 AM
What causes PH to drop? Flsprophet2 Saltwater Reef Aquaria 9 03-02-2005 01:42 PM
Why did my PH drop ? iskatefast Freshwater & Brackish - General Discussion 8 11-25-2003 11:56 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 03:06 PM.


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