how is my iodine so high?

[The Ugly Phase]

and where would tin and iron come from?

 

[The Ugly Phase]

the only thing i dose is reef zlements KH buffer and i use tropic marin pro salt

 

[EnterName]

Any food additives for fish food?

Maybe a bad salt batch hard to tell.

 

[Randy Holmes-Farley Verified Community Expert]

The iron is no concern. The tin is also probably not high enough to be an issue, but can come from plastics that use it as a stabilizer.

Not sure on the iodine source. What is the phosphateLevel? They can sometimes interfere.

 

[The Ugly Phase]

The iron is no concern. The tin is also probably not high enough to be an issue, but can come from plastics that use it as a stabilizer.

Not sure on the iodine source. What is the phosphateLevel? They can sometimes interfere.

they were HIGH 2.4ppm i have now got them down to 0.56 combination of 10% water change every day for 10 days and i started rowaphos yesterday

i only had fish so didnt test i was not being lazy i was doing 1% water change a day for a year but that method dosent work for me obv lol so iv started doing 10% every day for 30 days to get nutrients back into check then ill assess from there

 

[Randy Holmes-Farley Verified Community Expert]

FWIW, water changes are not very effective for removing phosphate (unlike nitrate) because such a larger portion of the total is bound to rock and sand, which comes off as you try to lower it.

 

[The Ugly Phase]

FWIW, water changes are not very effective for removing phosphate (unlike nitrate) because such a larger portion of the total is bound to rock and sand, which comes off as you try to lower it.

yes i know that but unless my rowaphos reduced it from 2.4ppm to 0.56 in like 12 hours water changes must have done something? i used 170 grams of rowaphos in a 94 gallon tank

 

[The Ugly Phase]

unless the hanna checker is wrong its the ULR that reads in PPM im going to send off another icp in 15 days anyways

 

[Randy Holmes-Farley Verified Community Expert]

yes i know that but unless my rowaphos reduced it from 2.4ppm to 0.56 in like 12 hours water changes must have done something? i used 170 grams of rowaphos in a 94 gallon tank

GFO can do that, depending on how much you used and how it is employed. It will also rise back up some no matter how you lowered it in 12 h due to desorption, unless you keep exporting it. . :)

 

[The Ugly Phase]

GFO can do that, depending on how much you used and how it is employed. It will also rise back up some no matter how you lowered it in 12 h due to desorption, unless you keep exporting it. . :)

desorption from the rock or the rowaphos?

and do you think i should change the rowaphos now or wait awhile longer?

 

[Randy Holmes-Farley Verified Community Expert]

desorption from the rock or the rowaphos?

and do you think i should change the rowaphos now or wait awhile longer?

Rock. GFO will too, but only if you put it in lower phosphate water than where it bound in the first place.

GFO depletes rapidly at high phosphate levels. You can always test the effluent if using it in a way that allows that, but if phosphate is above 0.5 ppm, active use with decent flow likely depletes it in less than a couple of days.

 

[The Ugly Phase]

Rock. GFO will too, but only if you put it in lower phosphate water than where it bound in the first place.

GFO depletes rapidly at high phosphate levels. You can always test the effluent if using it in a way that allows that, but if phosphate is above 0.5 ppm, active use with decent flow likely depletes it in less than a couple of days.

so i think iv hit a brick wall my phosphates seem to be stuck at 0.14ppm down from 2.34 i guess this is the leeching from the rocks slowing it down? i want to order 2 favia coral i have seen will 0.14 kill them or will they be alright? im sending another icp off wednesday see if iodine has gone down ect and wanted to order the favias next week

 

[Randy Holmes-Farley Verified Community Expert]

so i think iv hit a brick wall my phosphates seem to be stuck at 0.14ppm down from 2.34 i guess this is the leeching from the rocks slowing it down? i want to order 2 favia coral i have seen will 0.14 kill them or will they be alright? im sending another icp off wednesday see if iodine has gone down ect and wanted to order the favias next week

It is not correct that 0.14 ppm phosphate kills any corals. My recommended target range is 0.06 to 0.3 ppm.

 

[The Ugly Phase]

apart from nitrate being sky high and phosphates ( both getting worked on want nitrate 20ppm and phosphate 0.1 or lower) do you see any reason why i would not be able to keep coral? i have never ever been able to keep coral they do fine for 1 month and all goes wrong from there i want to succeed this time this is my 2nd icp nitrate was 261ppm and phosphate was 2.3ppm in 1st 1 (1% water changes a day did not work for me) @Randy Holmes-Farley

 

[The Ugly Phase]

the ICP centre is closed untill the 24th or 28th now so will order another 1 round about then and do 1 last ICP before i buy my 1st corals

 

[Randy Holmes-Farley Verified Community Expert]

No, i don't see a problem preventing adding corals.

 

[vlangel]

@The Ugly Phase, you could add some ornamental macroalgae to your display or sump if you have room and a spare light. Macroalgae like Codium are not invasive and would use up some of the phosphates. There are many beautiful species but be sure to research which ones are invasive.

 

[The Ugly Phase]

@The Ugly Phase, you could add some ornamental macroalgae to your display or sump if you have room and a spare light. Macroalgae like Codium are not invasive and would use up some of the phosphates. There are many beautiful species but be sure to research which ones are invasive.

i am running rowaphos in a reactor atm and working well my phosphate was 2.3ppm

 

[The Ugly Phase]

so randy my nitrates are probs 52ppm now as i have done 2x 8 gallon water changes since i sent off that ICP if i get it to say 30-40ppm can i start adding corals or is it best to wait to get it down to 20ppm?

today was water change #18 water change #25 will get my nitrates to 30ppm should be good to go then right?