Rust ? What do you think

[bta]

Hi everyone new to the forum hope you can help. I thought I would give my sump a clean out as I was struggling with nitrates.
And came across this on all the live rock in sump . I have fish and several bta and had no problems. As soon as I add even the easier to keep corals candy canes and Duncan's within weeks they start to go down hill. All parameters are good but nitrates at around 15.

Any ideas ? Thanks

 

[Dan_P]

Hi everyone new to the forum hope you can help. I thought I would give my sump a clean out as I was struggling with nitrates.
And came across this on all the live rock in sump . I have fish and several bta and had no problems. As soon as I add even the easier to keep corals candy canes and Duncan's within weeks they start to go down hill. All parameters are good but nitrates at around 15.

Any ideas ? Thanks

If the sump is exposed to light, its likely a photosynthetic organism.

 

[ryanjohn1]

Dino dyano cyano. One of those 3 or all.

 

[bta]

Dino dyano cyano. One of those 3 or all.

I'm not sure this brown stain won't clean off smashed the rock and it runs through it I have taken it out just in case

 

[Max93]

Hey OP, your best bet is to send out an ICP test with an ICP test kit provider (not ICP analysis) and it’ll tell you everything that is in your water, that way you know for sure.

I will agree though that this doesn’t look like rust - are you dosing anything?

 

[bta]

Hey OP, your best bet is to send out an ICP test with an ICP test kit provider (not ICP analysis) and it’ll tell you everything that is in your water, that way you know for sure.

I will agree though that this doesn’t look like rust - are you dosing anything?

Hi thanks for the reply not dosing anything other than ca mg and kh all redsea products I have rowaphos in high flow area at the other end of the sump nowhere near the rock. Another thing the rock doesn't smell like live rock .... It's not rite instinct tells me

 

[Max93]

Hi thanks for the reply not dosing anything other than ca mg and kh all redsea products I have rowaphos in high flow area at the other end of the sump nowhere near the rock. Another thing the rock doesn't smell like live rock .... It's not rite instinct tells me

Did you get the rock used from another hobbyist?

 

[bta]

Did you get the rock used from another hobbyist?

No started off with dry rock it's been in sump for 5 years but started to lose coral so cleaned sump out and all rock was the same and it has a metallic smell to it I have removed all of it now see if things improve

 

[ryanjohn1]

No started off with dry rock it's been in sump for 5 years but started to lose coral so cleaned sump out and all rock was the same and it has a metallic smell to it I have removed all of it now see if things improve

Very odd

 

[bta]

Very odd

Yep I agree all gone now what do you guys and girls recommend to replace the rock I've taken out of the sump

 

[ryanjohn1]

Yep I agree all gone now what do you guys and girls recommend to replace the rock I've taken out of the sump

Nothing. You don’t really need rock in your sump.

 

[joaocdestro]

(Just Kidding, you have a natural source of GFO) ;)

 

[bta]

Nothing. You don’t really need rock in your sump.

Oh rite sorry with me taking about 15kg of rock out I thought this would impact my biological filter so was wondering if if I should replace it with new rock ? However thinking about it now this may well take everything out of whack and starting the whole cycling process again

 

[romperstomper]

Some parts of my live rock went like this ,had them for years think it may be a part of dinos as I'm fighting this currently .

 

[bta]

Yes it's horrible and smells like a ship yard