when are phospates and nitrates too high

[mazon56]

i just checked the water on my 90 reef and everything was good except the nitrate and phosphate. ive noticed my lps especially my wellso's not opening they dont look very happy. mainly wellso's, lobo, some acans. Zoas, chalice, torch acanthophyllia, caps are all fine. could the phosphate and nitrate be the cause. i have a 90 gallon with a proclear sump. im running a brs gfo reactor, bag of chemipure, uv sterilizer, reef octopus xp1000s hob skimmer, tek 6 bulb which i do need to change the bulbs, and about 130lbs of live rock. and another 15-20 in the sump.

Amm.-0
Nitri.-0
pH-8.2
Nitra.-10
Phos.-0.36
Calc-450
Mag.-1560

 

[prattreef]

The Nitrate is not a problem, but the Phosphate is VERY high. You should be in the .06 or lower range. And you are using GFO? Where is all that PO4 coming from. Are you using RO/DI water?

 

[mazon56]

yes i am running the gfo its been on for almost 2 months. i am using rodi. but im gonna check and see what the tds i have been having problems with that and need to call air water ice. whats the quickest and best way to drop phosphates down besides gfo and water changes which i do bi-weekly.

 

[mbg75]

Test the phosphates coming out of the reactor.
If its not lower than the tank reading, u need to replace the GFO.

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[fishman1069]

I would change the gfo, check your tds on your source water and do weekly water changes. What do feed and how often?
Oh on another note, do not drop the phosphate too quickly. You can shock your corals. Just like everything else in this hobby, go slow.

 

[mazon56]

ok my tds coming out is 021ppm. im gona check the phosphate coming out of the gfo and see what i get. is 021 too high the rodi unit is less than 6 months old. and comes out retarded slow it takes me over 6 hours to fill up a 5 gallon jug. its 100 gpd unit

 

[mbg75]

Tds should be 0 out of the RO/Di.

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[mazon56]

ok so i have to call them thanks

 

[fishman1069]

Thats high for tds especially for a unit thats less then 6 months old. Somethings not right. You should be making 5 gals of water in an hour or so with a 100gpd unit and it should be 0 ppm tds

 

[savage]

ok my tds coming out is 021ppm. im gona check the phosphate coming out of the gfo and see what i get. is 021 too high the rodi unit is less than 6 months old. and comes out retarded slow it takes me over 6 hours to fill up a 5 gallon jug. its 100 gpd unit

you need to change your RO/DI filters dude....I have a 55g storage tank once I'm done fill that and my 70g tank plus my sump the filters get trashed for new ones..:fish:

 

[mazon56]

i thought ur supposed to change them once a year or so

 

[fishman1069]

When I lived on long island I didn't change anything in my 6 stage ro/di 110 gpd unit for two years and the highest tds reading I got was 2ppm!

 

[mazon56]

i guess it all depends how bad ur tds coming from the tap.my tds from the tap is 185ppm.

 

[fishman1069]

Yeah mine out of the tap was 52ppm

 

[mazon56]

yea that must be why

 

[savage]

i thought ur supposed to change them once a year or so

that's the membrane and DI crystals...

 

[mazon56]

they say membrane every 3-5 years

 

[savage]

they say membrane every 3-5 years

Does your RO/DI system has a flush kit ??

 

[mbg75]

Membranes are rated at either 96% or 98% efficiency, so with 185 tap Tds, worst case u should see 7 Tds after the membrane. The Di resin should easily bring that to 0 Tds after the Di.
Replace your sediment and carbon filters, run the unit without the Di hooked up. Let it run for a bit. Then check the reading after the membrane.

If its within range, (4% ot less than tap) then install the new Di resin.

If its too high, replace the membrane and check again.

This way you don't burn thru the Di resin until your other filters and membrane are good.

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[NewfiDog]

DI resin has no time life, it depends on your TDS and how much water you make. There is no way to say oh its good for a year that is %100 percent false. Its a media which absorbs when its done its done. Mine lasts about 2 months, others say theres last much longer but city water has very low TDS to start with so there DI resin will last longer. Membranes should last 2-3 years no problem more to 3 years if you can flush them. If your TDS is high its all in the media not all media is the same.