Any of you not use GAC in your SPS only tanks?

[galleon]

Just curious. Especially those of you who run so-called ULNS methodologies?

 

[biggles]

I don't use it unless i want to run a bit of GFO for a week and then i only drop the carbon bag in the sump baffle to block the flow more to force water through the GFO bag.

 

[trueblackpercula]

I don't but I used to and it works well.

 

[franklypre]

I don't run it, not realy much need for it IMO. I run purigen if I need to clear my water, seems to work just as well.

 

[pmt81777]

+1 on purigen polishes the water really well.

 

[johnvu713]

Purigen kicks arse ;0)

 

[chercm]

can purigen work with zeovit?

 

[Useful_Idiot]

I haven't run GAC in almost a year in a sps heavy tank with no problems. I do run a large UV sterilizer that does break down organics. Not a ulns but always 0 no3 and po4 below .06. I am understocked for my water volume also.

 

[Drae]

^^^^nice!

 

[reeflover62]

Over 4 yrs without ! No problems here

 

[Peter Eichler]

I used it for a few days every month of two. The difference it makes in water clarity when used is pretty impressive.

 

[rocknut]

Even though I no longer run Zeovit, I have continued to use GAC passively in my sump, as per the Zeovit guidelines. Does anyone see a negative from using it? Seemed like a cheap and easy way to get good water clarity, but maybe there are some other drawbacks that I'm not aware of?

 

[Monkeyfish]

Since I started using GAC (again) I've noticed that some of my corals' color improved (tort, staghorn) and some have faded (loripes, surahasoni). I'm hoping the fading will diminsh once they get used to the lower nutrient levels in the tank.

 

[trueblackpercula]

Over 4 yrs without ! No problems here

Stunning

How long have you had it.

 

[reeflover62]

Thanks Perc ! About 4 yrs. It would be huge if I would just leave it alone. Maybe I will try some GAC again.

 

[rogerwilco357]

Haven't used gac in over a year but used to for water clarity

 

[ridetheducati]

No GAC.