Can't reduce phosphates

[Shark]

Phosphates are currently 0.4 (Red Sea test) Been dosing nopox for along time now but it won't reduce phos
So tried rowaphos in reactor which did reduce from 0.6 to 0.4 but couldn't get it lower so tried lots of water changes around 50 % overall in my 200l tank,(added new pre filters,carbon block,resin in ro unit which produces 0 tds)
Recently added 85ml of seachem phos guard in sump....new test is 0.4 phosphates
Tank has lps sps some mushroom,no algae but no coral growth
Any help please before I give up

 

[merser]

Are you over feeding?

What is your stock?

Jamie


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[Shark]

Not really 9 fish small to medium size in redsea reefer 250
Feeding very little lately a cube every other day,Between then a small pinch of pellets and flake
Changed ro unit filters,resin etc ,added booster pump. 0tds
Added a new skimmer which is superb
Getting annoying as don't know where I'm going wrong

 

[merser]

Is the skimmer pulling much out?


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[Shark]

It's new skimmer tunze 9410 dc from previous bubble Magnus 5 and yes pulls Out an amazing amount of crud, around 3 To 4 days cup is full

 

[doug_amanda]

Is that 0.4 or 0.04?
I use the Red Sea test and got bogged down at 0.08 for months, an IPC test came back at 0.04,,
So it may be lower than you think.

 

[Shark]

No it's the non pro Red Sea test so only shows readings from 0.6 down to 0.1 then 0

 

[doug_amanda]

Can you get a second opinion with another test kit? 0.4 is very high considering what you have done so far. Maybe your LFS would test it for you.

 

[Shark]

Yeh think I need another test,can't see how the redsea test kit gives false reading though

 

[cuprajake]

you can buy liquid phosphate reomvers which i really rate,

 

[jim_fitz]

Is your test kit in date ?

 

[CEECH]

I would spend the money and get yourself a hanna checker for phos. worth the money and then you will get an accurate reading. Is it possible your rock is still leaching phos ?

 

[warby]

before you go any further get a second opinion on your po4 reading. or get a second test kit personally I use elos hr phos kit which iv found to be accurate to icp tests.
des, hanna isn't as accurate as everyone may think it's 5ppb or +-0.015

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[Shark]

Yes test kit in date,how to find out if rock is leaching phos
Here's pic of tank today

 

[Shark]

Red Sea test kit in date ,how do I check wether phos is leaching from rocks
Tank Been running for 6 months
All Stock from previous tank several years old
Phos reading still 0.4,only get a film on glass over 3 day, sand going brown in places
Here's some pics,see what you think

 

[doug_amanda]

Whatever phos or any other levels are I wouldn't want to change anything, those corals are loving it
Looks very good.

 

[CEECH]

From those pictures nothing in your tank is being effected , it looks to be thriving Big Thumbs Up

 

[Shark]

Just seem to get very slow growth from some corals such as mushrooms,Zoas Kenya tree frag never grown in over a year,don't know if you could see but there's a white tipped torch that's been closed for months,wasn't sure if high phos has caused it but did find flatworms on it once

 

[warby]

what's the rest of your params?

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[CEECH]

Just seem to get very slow growth from some corals such as mushrooms,Zoas Kenya tree frag never grown in over a year,don't know if you could see but there's a white tipped torch that's been closed for months,wasn't sure if high phos has caused it but did find flatworms on it onceView attachment 135921

High phos generally wont effect lps or soft corals. They actually prefer tge water a bit dirtier

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