Thanks all for the responses.
This particular tank has been running for about 4 years or so. It is a 4x2x2 and runs a remote sump
http://www.aquariacentral.com/forums/showthread.php?t=105248
The main reason for the thread I guess, was my shear astonishment at the lack of nitrate, as it has always been quite a battle.
I don't skim, don't feed my corals, and am a firm believer that the skimming process is detrimental to the health of tanks, unless they are so big (the tank) that it does not have an impact. The water column if full of micro organisms, some you can see, some you can't. I used this argument in a previous thread.
We all know how much crap fills our skimmer cups.. Yes? Well if you think of this, if you were to collect all that crap over the course of a week or so, and were to put it back in your aquarium, that would be bad.. Yes?
But, all that crap that I haven't skimmed is still in there.. Yes?
So what is that crap? or what was that crap? and was it really crap to start with..?
Has another cycle happened? Because something must me removing the stuff.. or the stuff wasn’t ever really crap, but living stuff.
In regards to the PH crash, well we know that is highly unlikely but a good point.
Look, I don't have the greatest tank in the world. I quite like the algae, I also encourage it's growth and trim it when it gets obtrusive, some people may not regard the algae as their cup of tea, but each to his own. All I know is that I have an abundance of organisms, and they are just the ones I can see, they weren't so abundant when I was skimming.
http://www.aquariacentral.com/forums/showthread.php?t=113943
Some info on the tank. Additional to what has been mentioned. I run a reverse photo period, the main tank has 2x55watt Actinic (420nm) and 2x55watt 10k fluorescent what ever you call them, in addition 2x250watt Giesman 14k MH’s in an Arcardia pendant, the sump has 1x55watt Actinic, and 1x55watt 10k and 1x250watt MH 14k. Stock consists of LR
http://www.aquariacentral.com/forums/showthread.php?t=111248 (unfortunately it doesn’t look like that anymore), 1 Blue Mandarin Goby (avatar), twinspot goby, pair of allardi’s, midnight Pygmy Angle, Maroon CF, 3 Green Damsels, 3 Tangs, Comet Marine Betta, Blastomussa Wellsi, torch coral, and a bunch of other stuff. I have feather dusters just popping up every where, the zoanthids are just nuts, the sand is riddled with tubes of things, worms, and other stuff. I can’t even begin to guess the amount of brittle stars. Here are some other threads to give you an idea
http://www.aquariacentral.com/forums/showthread.php?t=105938 http://www.aquariacentral.com/forums/showthread.php?t=107644
Oh, and if you think that I’m pretter weird so far….
http://www.aquariacentral.com/forums/showthread.php?t=108887