My SPS tank

[Denadai]

Very Interesting, you keep your alk in the low range 6.5 -8

Most of the SPS tanks has alk between 9-12 dKH

Now just one thing is missing, a picture from your sump :-)

Regards

[Dudester]

Originally posted by Denadai
Very Interesting, you keep your alk in the low range 6.5 -8

Most of the SPS tanks has alk between 9-12 dKH

With the ZEOvit method, raising alkalinity above 8 dKH can be detrimental and even lethal to SPS at higher levels.

[CeeGee]

Originally posted by Dudester
Now just one thing is missing, a picture from your sump :-)

I think he has already mentioned that he doesn't have a sump. I may be wrong though all that color has gone to my head.

[reefkoi]

Denadai I've never seen Prodibio or Zeo tanks with that high of Alk. you talk about.

I've seen a lot of USA Zeo tanks but for some reason these European Zeo tanks are just unreal in comparison. I don't know what you guys do differently but it works!

I heard from a german author that most of you guys use carbon and throw it out every week and replace with fresh carbon, do you Iwan?

What about water changes
What salt are you using right now?

Awesome tank's you have as always.
Chris

[Craig Lambert]

Interesting comment about the carbon being changed out each week. I think Zeo users do 15% weekly water changes.

[Dudester]

Originally posted by CeeGee
I think he has already mentioned that he doesn't have a sump. I may be wrong though all that color has gone to my head.

That was weird, I didn't make that comment about the sump but I've been quoted as writing that. Denadai should get the credit for that comment.

[fishdoc11]

Originally posted by Denadai

Most of the SPS tanks has alk between 9-12 dKH

Actually that was the case several years ago. The general thinking has swung back in the direction of keeping alk about 1dKH over natural seawater (~7 dKH) which would be around 8 dKH FWIW.

Chris

[cweder]

One of, if not the nicest colored tanks in the world. Only wish I could see it in person. Iwan is an artist

Iwan, have you posted the names of your corals. The colors are so good its hard to identify them.

Does anyone know why a higher alk causes problems using the zeo method and/or probidio method. I would think it may have something to do with the super low nutrients, but it would be good to know.

[iwan]

Originally posted by reefkoi


I heard from a german author that most of you guys use carbon and throw it out every week and replace with fresh carbon, do you Iwan?

Yes i do it. I change the carbon monthly.

[Denadai]

Originally posted by Dudester
With the ZEOvit method, raising alkalinity above 8 dKH can be detrimental and even lethal to SPS at higher levels.

Why ??? Someone can explain it ?

Regards

[Dudester]

Originally posted by cweder
Does anyone know why a higher alk causes problems using the zeo method and/or probidio method. I would think it may have something to do with the super low nutrients, but it would be good to know.

I was going to research it more before answering, but here's the gist of it. Zeolites function by ion exchange. That is, they absorb a charged particle and release a similarly charged particle. Not all zeolites are the same, some have an affinity for certain ions while others prefer different ions. The ZEOlites used in the ZEOvit method have a particular affinity for ammonium ions, and in exchange they release sodium and potassium. The ammonium absorbed onto the ZEOlith rock is used as nutrition for bacteria that are kept in relative high concentraion.

When carbonate hardness (alkalinity) is increased above 8 dKH, the ZEOliths begin to function differently in that they cannot absorb the ammonium as effectively. This results in a nutrient spike that can shock and harm corals that have adapted to a nutrient-poor environment. I'll read more about this and update if necessary, but I'm pretty sure this is accurate.

[iwan]

After all the "hard facts" some pics to relax

[Dudester]

Thanks Iwan, I needed that!! Beautiful, beautiful, BEAUTIFUL.

[Denadai]

Where are the pumps ?

[iwan]

Originally posted by Denadai
Where are the pumps ?

I have no pumps....Just kidding, they are hidden.

[818reefer]

beautiful tank.

[Craig Lambert]

Iwan,

In the 2nd picture in your last post it looks as though you are using a t-5 fixture that mounts to the top of your tank with minimal clearance. You mentioned ATI bulbs. Is this also an ATI fixture? The top of the line ATI power module here in the states is not available with legs to mount to the tank, it must be hung from the ceiling. Can you give us the details on your light fixture?

[iwan]

Originally posted by Craig Lambert
Iwan,

In the 2nd picture in your last post it looks as though you are using a t-5 fixture that mounts to the top of your tank with minimal clearance. You mentioned ATI bulbs. Is this also an ATI fixture? The top of the line ATI power module here in the states is not available with legs to mount to the tank, it must be hung from the ceiling. Can you give us the details on your light fixture?

I use an ATI powermodule and one ATI sunpower. The lamps are hung up with rope tractions. The distance of the lamps to the surface of the water is minimal.

[Craig Lambert]

Originally posted by iwan
I use an ATI powermodule and one ATI sunpower. The lamps are hung up with rope tractions. The distance of the lamps to the surface of the water is minimal.

What is attached to the top lip along the side of the tank?

[iwan]

Originally posted by Craig Lambert
What is attached to the top lip along the side of the tank?

That's a cooling system (fan)

[Flint&Eric]

Originally posted by iwan
I have no pumps....Just kidding, they are hidden.

[xinumaster]

Amazing tank!


You did it again, Iwan.

[cnaegler]

Iwan,
You've done it again!! Great looking tank! I'm a big fan since your last tank. Amazing colors! This is what we all strive for, IMO. Heck, i even had your homepage bookmark from the last tank thread. Keep it up!!

[ouuduy]

iwan i hope you know your a living legend friend

[kslick]

Iwan, glad to see you are back from the dead . As for the sump, I do think Iwan has one, he owns a ATI 250.