AquaTDV
Member
Your joy in your tank is obvious and inspiring!
Thank you!
Your joy in your tank is obvious and inspiring!
Sure GSP will work if you are looking for a coral to make some money with. However I am not sure how well it will work as a potential filter. Its hard to quantify the value of Xenia as a filter, but I do know what the literature says, and it seems to support the hypothesis. I had a 60 corner full of metallic green GSP. It was a BB so the GSP covered the entire bottom of the tank as well as the sides. This made it very easy to frag and attach to rocks for the LFS to sell.
rfgonzo, here is my take on the difference between Xenia and GSP. I culture both in a 400 gallon tub under natural sunlight. The GSP grows quick and can cover frag mounts relatively quickly its rate of growth definitely takes some nutrients out of the water. The Xenia I have in a 55 gallon drum plumbed to the same tub grows like a weed in fact it is too much work for me to sell it all. I sell all I can and end up just throwing the rest away. I don't even have to frag it I just throw rubble in and take it out a couple weeks later and its covered in xenia. The major difference is the biomass of the quickly growing Xenia is much more than the biomass of GSP and I think that's where Xenia works so well it needs more nutrients to create the larger biomass therefore taking more waste out of the water
I took down my ATS a couple months ago when I redid my return plumbing.
I wonder if I can use the old diy led arrays off my ATS to light up a xenia fuge? The leds would be 10:2:2 red/blue/uv over a 20g fuge......would that spectrum be totally out of wack?
Aqua you mentioned to cycle the skimmer to get the greatest growth from the Xenia. Can you explain the reasoning behind this? It seems not running the skimmer would be more beneficial since you would not be pulling nutrients away from the Xenia.
Aqua,
Can you explain how the Xenia actually exports/stores nutrients, nitrates, and phosphates? It seems to me like the Xenia is working like a skimmer where it takes up nutrients before they have a chance to break down and convert to nitrates and phosphates.
But in an SPS tank is the xenia outcompeting other corals for valuable nutrients like calcium, carbonate (alk), magnesium, iodide, amino acids, etc. My point here is that I don't want to pay to boost my dosing regimen just to keep up with the needs of the xenia just so that these valuable nutrients are still available for my SPS.
http://www.advancedaquarist.com/2010/2/aafeature This article will explain what your skimmer is actually pulling from your system.
I don't necessarily believe that Xenia directly remove N and P from the system. I still need to run GFO periodically to bring down my PO4 levels. However like you said it acts like a skimmer pulling dissolved organic mater from the water. Moreover the fact that Xenia does grow and multiply much faster with the skimmer off does seem to support the hypothesis that Xenia and skimmers compete for the same nutrients, and yes the Xenia does deplete other trace elements from the system similar to a protein skimmer. However I don't believe it does this to the same degree as an efficient skimmer. Especially when your producing "wet skimmate". This is where Xenia, ATS, and large macro fuge hold an advantage over skimmers. When using a natural filtration source it will ebb and flow with the available nutrients.
I am still a fan of skimmers, but I use it as a tool, not the foundation of my entire filtration system. Then if the skimmer fails so does the system. I always try to hedge when it comes to my system.