Tip recession and Fe(rust)

[7thheaven]

Hi all~

My SPS were dieing from 6month ago(september 2006).
The Symtom is same to all my SPS.

1. showing the tiny filament at tips
2. tips died
3. receeding to body
4. died completly.

I tried to find out the problem but I could not found it.
So before 2month ago(Feb 2007) I changed the water 60% of volume.
After changing water, the SPS are showing a good condition for a month, but after that(March 2007) the disaster began again.

My parameter is

KH 7.7 in salifert
CA 450 in salifert
MG 1280 in salifert
PO4 0.01 in hanna
salinity is 1.025 with refractometer.

I searched many articles in here, and found out that the Fe and
rust can make this situation.

Is it true? If true, I will find the source of it

I think I have some items that may make problem.

My little pump for making new salt water, and the tap water valve

What is your opinion?

 

[wentreefgirl]

Well i keep my dkh at 10. Id say 7.7 is gettin on the low side.

 

[Serioussnaps]

<a href=showthread.php?s=&postid=9651402#post9651402 target=_blank>Originally posted</a> by wentreefgirl
Well i keep my dkh at 10. Id say 7.7 is gettin on the low side.

Thats NSW's alk wentreef!

 

[ClownNut]

in an aquarium, you want to keep all reading a bit higher than the ocean.

 

[PrangeWay]

What salt are you using?

I run 7dkh and have never had any sortof tip recession, only run into problems when I break 9 or so.

Rust itself is just the exact same thing any GFO (ferric oxide) you'd buy for phosphate removal is. I'd think it's more if you have a steel or other alloy rusting you'd get things like chromium or other heavy metals drop in. I'd add a polyfilter for the heavy metals, a few consistent water changes and see how it goes.


PW

 

[7thheaven]

I am using Trophic marine Pro salt

 

[7thheaven]

I have a same situation same this

<a href=showthread.php?s=&postid=8755734#post8755734 target=_blank>Originally posted</a> by ScallopKing
Here's the start -

And now -

I'm so bummed. It's actually still doing it...not sure if this coral will survive this.

Affected my both tenius first. Most other corals were happy, except for a few that I knew something was amis with them.

Just to chime in, I have to wipe down mine every 4 days probably.

Do you think the polyfilter(What is it? I do not know about this)
can be helpful?

 

[ClownNut]

check see if the flow too strong. last time i cleaned my tank and pushed the tunze and point at an acro colony, didnt notice til half the coral was like what you show in the pic.

 

[wife no likey]

I had several pieces do the same thing when I OD'd GFO.

 

[7thheaven]

Thanks...

But I do not think that is because of strong flow. This sympton is shown every SPS in not strong flow.

And I do not use GFO (I think it is PO4 removal thing..right?)
I am zeovit user....

I feel somethinng harmful like toxin is supported continuously
but I do not know the source of it...

So How about using Polyfilter? If helpful, How many should I buy?

I have 100gal tank...

 

[wife no likey]

yeah that's the po4 stuff

although as you are running zeo, I bet that people may be of more use over at zeovit dot com

I think that you bak dosing, etc can lead to similar issues.

 

[PUGroyale]

<a href=showthread.php?s=&postid=9652426#post9652426 target=_blank>Originally posted</a> by 7thheaven

I am zeovit user....

Could be zeovit related too... if your system is set up incorrectly or your dosing inaccurate, it's real easy to lose corals on zeovit. What's your flow rate through your zeo-reactor?

You might want to post this problem on the zeovit forum as well, you'd get more specific zeo answers. I'd recommend asking gqjeff over there.

Personally, I think it's alkalinity related like wentreefgirl said. It's easy enough to find out... just bump your alk up to 9 or so. I believe that's contrary to zeovit rec's but it's better than losing corals

 

[Kolognekoral]

I would definitely post this on the Zeo-vit forum, as this looks like a kind of burn, one that i would associate with high calcium/dKH, although your levels seem fine.

Unlike many, I attempt to maintain my KH at 8 and not let it get too high. Calcium is difficult for me, tending to rise quickly to over 600 with my calcium reaktor.

 

[PrangeWay]

Ah didn't know you where using Zeo to. Make sure youre bak, food and start2 dosing all conform to the zoeguide. Tip recession is from high dkh (yours looks fine), overdosing K (are you dossium Potassium?), overdosing B-Balance (if you are using it stop for a while). Also with Zeo there has been reports of problems using TM Pro, because all the "extra trace elements" can build up causing problems, might want to try regular TM for a bit.


PW

 

[PUGroyale]

<a href=showthread.php?s=&postid=9652733#post9652733 target=_blank>Originally posted</a> by Kolognekoral
looks like a kind of burn, one that i would associate with high calcium/dKH, although your levels seem fine.

But the alkalinity would have to much higher than that, like in the teens or higher IMO

 

[Kolognekoral]

Dave,

the zeo products apparently alter the toxicity levels, which is why I haven't really tried it out. I run a DSB and it is not compatable with zeo, either. I wish they were not so secretive about the entire affair. Of course, maybe they really aren't sure what is happening, only the parameters that work.

 

[reefboy1]

I seem to recall seeing a thread a while back where someone had a similar problem that was finally attributed to bromide (or bromine) overdose caused by their salt mix. IIRC this also caused an invalid Alk reading...

You may want to do a search...

 

[PUGroyale]

Jamie,

agreed

I've always been skeptical of zeovit for those same reasons... I think you can run a DSB but it supposedly will diminish and/or delay the results zeovit promises.

 

[PUGroyale]

<a href=showthread.php?s=&postid=9652895#post9652895 target=_blank>Originally posted</a> by reefboy1
I seem to recall seeing a thread a while back where someone had a similar problem that was finally attributed to bromide (or bromine) overdose caused by their salt mix. IIRC this also caused an invalid Alk reading...

You may want to do a search...

That originated on the zeo forum and was gqjeffs tank that crashed. He was using SeaChem salt and running his alk @ 7, he tried to go even lower to 6.5. The problem was his carbonate alk was then only at like 5 :eek2: Seachem adds a significantly higher amount of borate to their salt than any other brand and it skews the test results.

 

[twon8]

i heard some recent batches of tropic marin pro had mag at 1900 and alk at 6.