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Post by jasonandsarah on Mar 13, 2014 8:48:44 GMT -5
So I have a few different questions?
#1-how come I slow down on my water changes and it seems like my tank does better? #2-how in the heck do I have 0 nitrates? Tested api test kit (I know they're not accurate but 0?? It's always given my readings before? (No I don't have a bunch of algae in my tank that's consuming the nitrates I have some algae but I really don't think I have enough to give me zero readings?
#3-is there such a thing as being under stocked? Always had an under stocked tank and tried to be careful about over feeding. But do I have not enough fish?
#4-I use a brs phosphate reactor and since I stopped using just gfo and now use gfo/carbon mix in one reactor it seems like this slime algae I was getting is starting to die off?
It seems like a lot of the things I've been taught and read since starting my reef tank aren't really working the way I think they should? Especially the nitrates I just don't get how slacking on water changes for a couple months could help my tank? At least with the gfo I know that if I was using to much and bringing my phosphates to low them that may have been doing some of it? But all confusing?
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Post by Sean (90 reef, fw rack sys) on Mar 13, 2014 8:52:51 GMT -5
My display tank is the same. I've been trying to eliminate a cyano problem for quite some time now, but all coral seem to do better when the problem is there. Sand looks nasty but corals look awesome!
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Post by jasonandsarah on Mar 13, 2014 8:59:33 GMT -5
That's because the Cyano eats up all the nutrients and makes the corals happier until the cyanobacteria goes out of control and starts over growing things and then they won't be happy. I've also heard that a lot of inverts and crustaceans can be sensitive to cyano? Idk if that is true? I know a lot of them can also eat it but when I had cyano my snails seemed to avoid it at all cost!
Also like I said it's more confusing because I don't have a large algae problem right now?? If I did then I'd know where those nutrients were hiding
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Post by foggman on Mar 14, 2014 7:06:50 GMT -5
Just a thought based on what I've read, if your skimmer is doing its job then waste is removed befor it can be converted to nitrate, and with an under stocked tank that is probably the case, my nitrates stay right around 0 with biweekly water changes, you've seen my skimmer it's a beast.
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Post by jasonandsarah on Mar 14, 2014 7:31:52 GMT -5
Less then one day of skimming.pretty much just overnight this is what my skimmer pulled out and I cleaned the whole collection cup yesterday. Attachments:
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Post by foggman on Mar 14, 2014 17:49:57 GMT -5
I would say that is why you have no nitrates
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Post by Syntax on Mar 16, 2014 6:48:32 GMT -5
There is also a strain of bacteria that grows in anaerobic conditions that eats nitrates. This part of the cycle happens long after the nitrogen cycle has completed. Most algae issues in people's tanks that cycle only until the nitrogen cycle has completed deal with these blooms during the first year or two (myself included) because they don't allow their tank to fully cycle. Algae issues would virtually disappear in a properly cycled and stocked tank. However, this can take three months!! Who wants to wait that long.... Not me. Read this article, it's a great read. It's long, but worth every minute and answered a lot of questions for me. Big "a-ha" moment. www.reefsanctuary.com/forums/just-starting-out-sw-beginners/26180-newbies-little-something-cycling-breaking-new-reef-tank.htmlI'm setting up a 125 gallon soon, I hope I have the patience to follow this advice.
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