Thank you coralcruze
1. Bioload- I assume you must be feeding the fish? if so what food? also is the food metered (measured) accurately? or eyeballed...
Yes, all food entering aquarium is measured regularly and it is only frozen artemia (brine shrimp) about 12 grams per day (wet weight). I don't think there is a need to be measured accurately,I'm doing this because of an still ongoing experiment.
2. you said no amino and no vitamins. On your Dec 23rd post you mentioned that you do dose amino. did you stop dosing amino?
Yes, from almost 1 year stopped amino and vitamins
3. you said you carbon dose. whats your export method? since you don't do water changes... is it skimming? anything else? how much do you export daily/weekly?
Intensive skimming yes, I have way oversized skimmer ATI PowerCone 200i, real monster pulling enormous volume of air. I believe highly efficient skimmer and quality light is the key.
4. I see you have bare bottom (no sand). Are you siphoning detritus? vacuuming?
Yes, I'm siphoning and measuring detritus regularly.
5. I too have read your comments in the Redfield thread. what do you keep Nitrate and Phosphates at? any particular ratio outside of Redfield?
Not really special ratio, just Nitrates 0.5-2 ppm and PO4, below 0.04ppm.
6. are you feeding corals? any liquid foods? Phyto? oyster? other?
No
Stoyan, the corals look superb; both the health and colours are top class. Got a few questions/requests:
I particularly love "top down" shots of the SPS corals. Please feel welcome to flood the thread with such photos.
Hi Sahin, thank you
1. Could you share photos of the filtration/sump please?
Unfortunately it is not possible to take picture now, because the sump is covered with insulation materials (it is in basement and here we have quite cold winter), but it is very simple - only skimmer and circulation pump, and Jebao dosing pump for two parts, bioactive elements and organic carbon.
2. Is Skimmer, Liverock & Vinegar/Vodka the only sources of filtration? Or do you use GAC as well? - Since you do not carry out water changes how do you deal with yellowing of the water/gelbstoff? UV/Ozone?
Rarely I'm using GAC, for 2-3 days every two months or so, but quite often I'm dosing mix of carbonates (similar to CoralSnow), which helps a lot against yellowing of the water.
3. How much Zeolite are you using? - Think I read on another thread you utilise a small amount to control some elements?
No, I'm not using zeolites anymore, never used in this tank.
4. What is the T5 tube makeup ie which tube combo are you using? Do you feel the tube combo makes much difference to the absolute SPS colouration? - I dont mean apparant colourati0n where some pigments are exhibited more strongly immediately after changing the tube combo.
Very good question, I have ATI Powermodule 6x54watt with t5 ATI tubes. And no, I dont think there is big difference of the tube combo - I have very good and similar results with various ATI tubes and combinations Coral +, Aquablue special, Blue + . Curently i'm running 3 Coral plus, 2 Blue and one Actinic, I'm changing tubes every 6-8 months.
5. What is the purpose for dosing Nitrates? Do you see any difference to coral colouration or is it merely to balance N : P ratio?
I was dosing nitrates in the beginning, because of the oversized skimmer and bare bottom, there were no nitrates and lps corals were starving.
6. Can you tell us what the 8 bioactive elements that you are dosing and what each does for the coral and SPS colours?
Iron, Iodine, Manganese, Vanadium, Copper, Molybdenum, Nickel, Chromium all of them very important for the life in the reef tank, not only for corals but mainly for the bacteria, but may be one day I'll find more time to share my thoughts about bioactive elements and reef life.
Thank you for your questions
