OK! Enough chat...Starting a 1000g+ Reef

Oh yeah, I remember you got a club deal or something right?

I am learning a lot about carbon from various sources both within the aquarium hobby and in other fields, and finding some interesting stuff.

Imagine if you are having water quality issues, perhaps HA, dinos, etc. What would be the first thing that comes to mind? For me it would be to do a water change and swap out carbon to help boost water quality.

But if the carbon is leaching PO4 at the rate the pellets I tested was, then you could actually be exascerbating the problem rather than fixing it. It's a strange thought, but the more I research and test carbon and other media, the more I am finding out that things we commonly use could be causing us long term issues..

It's something like learning that water changes bring in new silicates, which actually encourages dinos to prosper. And to learn that many municipal water supplies actually add phosphates and ammonia is disturbing too. Then you try to clean it with RO/DI and the CO2 in the water may be eating up all your resin and allowing ammonia to pass through.

Then there's the salt mixes with such varying degrees of unwanted elements it's very difficult to really know what you are putting ito your system unless you test every batch of water you make.

I have a new "algae" in my system in just 3 spots. It is matted but vacuums out very easily. Sherman was over yesterday and commented that it may actually be something else like bacteria because of its localization and the fact that it is producing some gas. I have not been able to get a good pic unfortunately, but I will mention that I have eased off of water changes dramatically over the last to months to experiment a little.

I had been doing 85g per week and now I am doing 85g per month. I still am not comfortable with the stability of my tank in terms of alkalinity and I am working slowly to rectify that.
 
Yes, it was part of a huge group buy.

You're right about the various solutions carrying in new problems at the same time as an annoying side effect.
 
<a href=showthread.php?s=&postid=12602154#post12602154 target=_blank>Originally posted</a> by jnarowe
So I normally by Marineland GAC since it has good ratings and is fairly trouble-free except needing a lot of rinsing, but recently I let a guy sell me on his "Premium" Activated Carbon. He had a good story about how this pelletized carbon was made from premium carbon rather than the crap that Marineland etc. are made from:

Specs: "70 C.T.C 4.00 pelletized; 1000 - 1000 mg / gm iodine number; 3% moisture maximum, 10% ash maximum; 0.44 - 0.46 gm / cc apparent density; 1000 - 11000 m2 / gm specific surface area."

So here is what I did: I placed 1g carbon into 4g RO/DI water and soaked it for 1 hour. Then tested for PO4 and got a zero. So I thought to myself, Sherman doesn't know ****.

Then I let it soak for 24 hours. I also did a sample of Marineland side-by-side for comparison. After 24 hours I tested both and the pelletized had .06 mg/l PO4 and the Marineland had zero.

Then I poured out the RO/DI and re-filled for another 24 hour soak. At the end of that period pelletized = .06 mg/l and GAC = 0 mg/l of PO4.

Again I poured it off and refilled. 24 hours later, Pelletized = .08 and GAC = 0 mg/l PO4.

I repeated the pour and refill and once again tested after 24 hours and the pelletized = .11 mg/l and the GAC = 0 mg/l PO4.

Of course when I called he asked what the PO4 level of the RO/DI water was...duh...it was zero!! He said he had never had any trouble with it and that they had been selling it for years. I asked him if any of his customers had ever tested it for PO4 and he said of course since they sell it all over the place.

At any rate, I feel it doesn't really matter how much DOC a carbon can absorb, if it leaches PO4 into the system, and I have to wonder how many people around the country are using similar carbon and having nusiance algae issues.

Imagine you are having this problem...wouldn't your first thought be to change out your carbon?

So basically it was a 4:1 ratio. I don't want to test 1 gallon of carbon and waste it. However, I can test 2 cups of carbon in 8 cups of RO/DI water.
 
<a href=showthread.php?s=&postid=12646829#post12646829 target=_blank>Originally posted</a> by melev
Did you stir the water before you tested, or just see what you got from a water sample? How much water did you soak it in? I think I'll try the same with what I use.

I lightly agitated the cups. I used about 1/3 cup GAC to about 8 oz water. I also filtered
 
Hey Marc,

No rhyme or reason to my portion ratio. I had pulled out a gallon of pellets because that is normally about how much I use. But I thin 4:1 is just fine to give you an idea as to if any PO4 is leaching. IMO, it either will or it won't. But, the first test taken after about an hour IIRC, showed zero.
 
If it's soaked in RO/DI water doesn't mean it's wasted, does it? The carbon should still be like new. It's just clean now and ready to be used in your system, assuming that it tests OK for PO4. Right?
 
yes. I always soak my carbon and other media, but you really do need to be confident that your RO/DI water is good too. You have to rinse most carbons anyway, and doing it in tap water would "use" up some of the carbon's capacity in theory anyway.
 
well I had another bizzarre fish loss tonight. My CBB got stuck in the stag coral I got from Dang and could not free itself. Must have happened within an hour of feeding time as it was still bright and intact except for the fin it mangled trying to get loose. I had a very hard time extracting it from the coral and in doing so dislodged the colony and a couple of rocks. I guess those spiny dorsals can be a bit hazardous! :eek:
 
Damn, sorry to hear of that, Jonathan. Did the coral make it out of the incident ok? And I wonder how often that happens in the wild.
 
<a href=showthread.php?s=&postid=12660193#post12660193 target=_blank>Originally posted</a> by amashun
J, i just check your little red house. some of the link doesn't work on your webpage...

which ones?
 
Coral is fine. It reminds me of when I watched a lineatus choke on macro and sand. It dropped dead right in front of me.

The CBB was doing so well too.
 
Now all is working fine. maybe just my work comp network blocked some site again.

Sorry for the confusion..
 
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