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    Why is it a concern that people are buying as...

    Why is it a concern that people are buying as opposed to diy?? Would have thought it was the other way around.
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    Very Quiet 🤫In Here

    I have been away from the scene for a few years but now I come back it is so quiet in here! Is it the usual thing of SantaMonica always having an answer to green dots, black dots, too much/little...
  3. Thread: Phosphates

    by dtyharry
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    Phosphates

    http://www.skepticalaquarist.com/phosphate-cycle

    This is a link to a really good article on phosphates. To anyone like me who finds the whole subject hard to grasp sometimes it gives a good...
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    Seems there are two methodologies at opposing...

    Seems there are two methodologies at opposing ends. On one hand you flush the toilet straight away to remove waste as soon as you go ie bare bottom to allow easy siphoning of detritus before it is...
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    http://web1.reefcentral.com/forums/showthread.php?...

    http://web1.reefcentral.com/forums/showthread.php?t=2196359
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    Sticky: Surely one sided needs 24sq in so 6x4 inches...

    Surely one sided needs 24sq in so 6x4 inches would be fine with 24w cfl
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    Kerry, that's exactly what I was saying. The...

    Kerry, that's exactly what I was saying. The bubbles are not in contact with the water long enough for any meaningful gas exchange to take place. The only reason bubbles work is by disturbing the...
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    I am sure I did not type in waterfalls in initial...

    I am sure I did not type in waterfalls in initial thread but there you go! I just wondered what the purpose of the bubbles was, to create circulation or provide gases.
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    Are Bubbles Required in Waterfalls?

    Don't know if anyone else has mentioned this but are bubbles technically required for this system to work or are they there just to create water flow. If the latter is the case could this not be...
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    That sounds logical!

    That sounds logical!
  11. All the nutrient export info makes sense. What...

    All the nutrient export info makes sense. What does not make sense to me is why Ace25 is attempting to maintain nutrient levels many times higher than those on a natural reef.
    It is well known that...
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    Re: setup for 550Gl re designed

    For anyone reading this please be assured that Ace is wrong on the algae dissolved organic carbon issue
    Algae that is being constantly grazed passes its harvested energy rapidly up the food chain...
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    HAPPY NEW YEAR!

    Let's hope this new scrubber lives up to expectations!

    Was gonna put an interesting profile photo on but don't want trouble with the moderators!
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    Re: setup for 550Gl re designed

    Yes, when the turf algaes are constantly grazed and kept at a very short length, the inorganic carbon they fix by photosynthesis is rapidly passed up the food chain, and most of their energy is taken...
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    Re: setup for 550Gl re designed

    I do not agree with Ace25 at all on the imbalance thing. All the studies show that algae only start to release doc to any significant degree if they are left 'ungrazed'. If you are scraping your...
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    Re: Browning of corals

    If you google some research on browning of corals it usually comes down to two issues, excess inorganic nutrients in the form of nitrogen which in aquaria is usually in the form of nitrate, in the...
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    Re: Coming Soon: Algae Scrubber II

    Just wondering if the new design is expected to be as efficient for coldwater tanks. If so I will try one on my daughters 30 gallon fancy goldfish tank. Those fancies don't half put out a lot of...
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    Re: white stuff growing everywhere

    Probably little sponges. Filter feeders so I guess they show there is plenty of food for them.
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    Re: Corals vs Algae FAQ

    Well not many people here voice it.
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    Re: Corals vs Algae FAQ

    Agreed but it is important to offer a balanced viewpoint which is why I posted the other links.
  21. Re: FAQ study shows that corals prefer to grow touching turf

    http://www.amigoe.com/english/72684-cor ... urf-algae-

    http://www.plosone.org/article/info:doi ... ne.0014312

    Just google turf algae scientific studies.
  22. FAQ study shows that corals prefer to grow touching turf

    http://www.stri.si.edu/sites/taxonomy_t ... _Algae.pdf

    You will always find evidence to support an argument. The answer is balance surely.
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    Re: Corals vs Algae FAQ

    The implication from Santa's FAQ post as I read it was to show that reefs have not changed and that the algal coral balance is as it always has been.
    If that was his intention then he has missed the...
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    Corals vs Algae FAQ

    A quote from reefcheck.org

    "Algae (also known as seaweed) are a normal component of healthy coral reefs. Turf algae are cropped algae only a few centimeters in height, typically growing on rock,...
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    Re: How much feeding for a 9 X 9 screen

    Presumably what he is saying very briefly is that frozen food weighs more than water. 1cubic centimetre of water weighs 1gram, food I guess is more dense so one cube weighs in his case 3.5g.
  26. Thread: ORP readings

    by dtyharry
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    ORP readings

    Just wondering if anyone has taken readings for their scrubbed aquaria. Of course, it does not tell you everything about your water but it can be an indicator of water 'health'.
    Just curious,...
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    Re: afraid of shutting off the skimmer

    Take skimmer off and try using carbon for a while. It will not remove any tiny particulate food like a skimmer can and will keep dissolved organic carbon at natural levels.
    You could try gradually...
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    Re: Live Rock in a Scrubber System

    Wonderful Ace lets all grow brown spindly corals with low skeletal density.
    Just because I don't always fall into the let's follow Santa at all costs category does not make my posts patronising, I...
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    Re: Live Rock in a Scrubber System

    Anyone else here think that is cooking live rock? (LOL!). I was under the impression what you are talking about is 'seeding'.
    Cooking is where the rock is placed in pure phosphate free water which...
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    Re: Live Rock in a Scrubber System

    14828sq feet or just over 1/3 acre is the surface area of the grains of sand in a sandbed 3 x 1 feet by 4 inches deep. Figure calculated by Ron Shinek in Nov/Dec online issue of Coral Magazine. It is...
  31. Thread: Gag!

    by dtyharry
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    Re: Gag!

    This is a major error. Each grain of sand becomes colonized with bacteria of different types depending on depth, is it not silly to say thay only the grains of sand at the very top do anything?
  32. Thread: Gag!

    by dtyharry
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    Re: Gag!

    Sorry floyd for going off track! Aeros is wrong about surface area. A sand bed has vastly more surface area than any amount of live rock you could put in an aquarium. It does not need to be a deep...
  33. Thread: Gag!

    by dtyharry
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    Re: Gag!

    Ace25 makes a very good case for not having any live rock in your aquarium at all, and maybe an artificial rock with no porosity for easy cleaning would be better. You do not require denitrification...
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    Re: Metrics of success

    Viruses, including bacteriophages Most of the biomass in the ocean is made up of viruses–Zimmer (2006). They attack and kill bacteria, archaea and other micro-organisms, which releases the dead's...
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    Re: Metrics of success

    This is not correct, healthy reefs are not algae dominated. Yes, the vast majority of the energy input to the reef is via photosynthesis of algae, but this energy is rapidly moved up the various food...
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    Re: Metrics of success

    No it hasn't. Natural levels of algae produce natural levels of Vitamin C and Amino Acids for coral growth. Not elevated levels. .[/quote]

    Conveniently missed out the word EXCESS from my excess...
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    Re: Metrics of success

    I think if it is only zoos causing a problem and everything else is okay, the problem is with the zoos and not anything to do with your water. The sps in particular are far more sensitive to water...
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    Re: Browning of corals

    Probably because of lack of other nutrients like nitrates and phosphates, scrubbers do seem to be very good at reducing these to extremely low levels.
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    Re: Browning of corals

    How about halisarca caerulea, a sponge. These things have been shown to consume up to half their weight every day in dissolved organic carbon but grow very very slowly. This seeming imbalance is...
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    Re: Browning of corals

    1982 just called, they want you to read their studies on the topic. ;) There really is no question on "if algae produces DOCs", the question is how much DOCs does your scrubber produce (each one will...
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    Re: Browning of corals

    The only thing you have to worry about with elevated levels of doc are massively increased microbial growth on the coral surface which literally starves the coral of oxygen. Of this there is now no...
  42. Thread: SM100 Clone

    by dtyharry
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    Re: SM100 Clone

    If I remember rightly you said your screen was 36 sq in so you can feed way more. The amount on that photograph is not going to generate much growth so either reduce the size of your scrubber or feed...
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    Re: recommended flow rate

    Think you mean screen width. Look at the new size guidelines post by Santa. 12sqin per each cube of frozen food fed per day. So if your screen is say 6 x 6 inches you could feed 3 cubes per day if...
  44. Thread: My setup.

    by dtyharry
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    Re: My setup.

    Nitrifying bacteria are not heterotrophic they are chemoautotrophic, they fix the carbon they need from dissolved carbon dioxide, nitrogen from inorganics, ammonia, nitrite etc.
    I see what you are...
  45. Thread: My setup.

    by dtyharry
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    Re: My setup.

    Could you please clarify this statement, the two types of the bacteria you mention are one and the same are they not. The bacteria that eat the doc are heterotrophic because they cannot fix inorganic...
  46. Thread: My setup.

    by dtyharry
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    Re: My setup.

    All algae needs to grow is carbon from dissolved carbon dioxide, nitrogen from ammonia, nitrate etc and phosphate along with some trace elements like iron. There is no mystery to it as far as I can...
  47. Thread: My setup.

    by dtyharry
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    Re: My setup.

    A mystery!!! Cant see how a skimmer directly could affect algae because it does not remove nitrate, phosphate etc. Maybe the bio pellets have promoted the bacteria levels to such an extent that it is...
  48. Thread: My setup.

    by dtyharry
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    Re: My setup.

    Just read entire thread of vannypt. Seems like the theme running through was feeding or lack of it. The scrubber was more than capable of a lot of feeding but there seemed a reluctance to do it,...
  49. Thread: My setup.

    by dtyharry
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    Re: My setup.

    The old guidelines were 1sq in a gallon I believe for a 2 sided screen, double for a one sided screen so you were way undersized then, should have been 32sq in not 12. You would also have needed 16w...
  50. Thread: My setup.

    by dtyharry
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    Re: My setup.

    Inorganic carbon yes, not dissolved organic carbon which I think was being referred to. Until accurate measurements are taken we will never know for sure the levels in scrubbed aquaria, but there is...
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