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Case Study Over The Past 26 Years

Discussion in 'Fish Health' started by les, Dec 29, 2017.

  1. les

    les Registered

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    Case study.
    My current tank has been set up 20 months, many of the inhabitants, rocks, fish and corals came from my previous tank and even tanks before that. Over the last 20 months I have added quite a few fish and corals most corals as frags. These animals have come from a number of different LFS's here in the UK. I have never QTd any fish or coral although I do tend to dip corals.

    Amongst the fish I introduced directly include 4 Royal grammas, I added 2 then some months later another 2. Each time I added the RGs and within an hour or so I would notice the appearance of a few white spots and the fish would scratch on the rocks and sand no other fish would show signs of WS and in the case of after adding the second 2 the previously added established 2 would not show any signs of WS.

    Within 24/48 hours the white spots had disappeared and the fish had stopped scratching with no further sign of any diseases like WS appearing. I have only ever sen WS on my Royal gramma and then only for a brief period after introduction. I don't keep tangs but I do have a Foxface Regal and multibar angels along with damsels and wasses and a pair of clowns all very healthy. I have never seen a sick fish in my tank although I admit one or two have disappeared and a couple have gone carpet surfing.

    Do I have white spot in my tank? I would think...no expect so. It must be around 26 years now since I saw any sign of disease in any of the 10 or 11 tanks I have had in that time. I have never QTd or medicated in that time. Am I alone here in the UK who report similar? Nope I have friends who do similar to me and their fish don't get the likes of WS and they have never QTd a fish. That's just the way it is. I would never knowingly introduce a fish carrying WS but Iknow I must have done unknowingly as with my RGs which are known WS magnets and indeed showed WS on first introduction but that soon disappeared with no further signs of any such.
     
  2. doug_amanda

    doug_amanda Admin Staff Member

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    I've Often wondered why it is that some tanks fish seem to tolerate WS and shake it off while in others it causes a total wipeout, the best I can come up with is there must be different strains, with some more deadly than others.
    I didn't know that grammas were prone to WS, I introduced two three weeks ago, the first fish in after our WS wipeout three months ago, they're both showing no signs of spots so I guess that's a good sign that it's gone.
     
  3. Gweeds1980

    Gweeds1980 Registered

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    Immunity... simples.

    Omega 3 in the diet allows fish to build up levels of DHA in the subcutaneous fatty layer. DHA is a potent antiparasitic (it's being looked at as the future of antimalarial drugs as we speak).

    This is one form of defence the fish has, by feeding mostly prepared foods, which are low in omega 3, the fish is unable to maintain this first line of defence.

    Secondly is proper immunity. Fish affected by ich will develop antigens which will kill the parasite. This immunity lasts for about 6 months, so as long as you have ich in the tank you will maintain fishes immunity. A stress event will lower a fishes immune response. You'll notice that often a minor ich outbreak will happen following an addition, change to water chemistry, rescape or change in flow or lighting. Immune fish will normally show symptoms for a few days and then be fine again.

    Immunity can also be gained via diet. Fish in the wild ingest all manner of parasites and diseases when eating prey or scavenging, this sends a similar response to the immune system as being infected.

    So, to ensure ich (and anything else for that matter) isn't an issue, simply feed proper food (fresh or frozen fresh seafood, complete with skin, guts and bone), keep parameters stable and hands out of the tank as much as possible... a UV unit or similar sterilisation will also help in keeping parasite numbers down.
     
    les likes this.
  4. les

    les Registered

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    I have written a number of times on how I keep my fish and corals esp with regards to my DIY foods and feeding along with the use of fish oil in my own variety of prepared fresh foods. My observations and experiences over many years agree with much of what you say. However, my philosophy goes deeper than that and includes keeping fish as close to as reasonably possible to what they would find in their natural habitat and surroundings in the wild. That also includes their environment and tank mates and how they are encountered in nature such as in pairs or groups. I eliminate stress as much as possible and support their immune systems with fresh and frozen foods and feed very little dried foods, I also use Oxydator's to keep a high O2 content to the water. I have no need for ozone or UV and don't advocate them when I can use Oxydators instead.
     
  5. Gweeds1980

    Gweeds1980 Registered

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    All good stuff. There is only so much we can do to make a small glass box as 'natural' as possible... does it's innately being unnatural mean it's not worth trying? I don't think so...

    Tank thread :)
    http://www.thesaltybox.com/forum/showthread.php?t=164069
     
  6. les

    les Registered

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    This is why I tend to use words like try and reasonably possible.However, I believe the closer we can get to what mother nature does the better for our animals in the long run. I figure mother nature has had millions of years to perfect what she does and we can do no better than her efforts. I am still a fair way off replicating her ways but I believe I am on the right track with what I do and how I keep my animals.
     
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