Cafepress Store     Cafepress Store

Results 1 to 5 of 5

Thread: Experiment Ideas!

  1. #1
    Registered Member zhuls1's Avatar
    Join Date
    Mar 2017
    Posts
    196
    iTrader
    0
    Real Name
    Zac

    Default Experiment Ideas!

    Hello, I have been reading through Simplydiscus.com for quite some time now, and was very intrigued by many of the experiments in the laboratory section. I thought I would create a post for people to share ideas and an example experiment layout so the users of simply discus can draw inspiration for potential experiments.

    I have several experiments that I would like to try out (once I actually get into discus), but don't know if it will be practical (at least not for a few years, that is, until I have breeding pairs). I will share my potential experiments so hopefully someone else may be able to test them to fulfill my curiosity, and of course, the curiosity of many other simply discus members.

    Please add to this post to help discus keeping as a hobby to evolve so we can enjoy the healthiest potential fish in the future.

  2. #2
    Registered Member zhuls1's Avatar
    Join Date
    Mar 2017
    Posts
    196
    iTrader
    0
    Real Name
    Zac

    Default Re: Experiment Ideas!

    Experiment #1

    How much water change is necessary to produce the maximum sized discus possible?

    Process,
    Take 3 - 4 55g, split a large batch of fry evenly amongst the tanks, each having 3 spongefilters
    heat the whole room (ideally) to ensure all tanks are EXACTLY the same temp.
    Weigh the food so all tanks get identical amounts of food. ( you could, for example, feed the discus 4 times a day, 5 grams each feeding)

    Tank 1 gets 100% p/day waterchange
    Tank 2 gets 50% p/day waterchange
    Tank 3 gets 100% every other day waterchange
    Tank 4 gets 50% every other day waterchange

    Whilst undertaking this experiment, be sure to take record of water parameters frequently (weekly perhaps?)

    Parameters to be recorded
    Temperature
    Nitrates
    Phosphates
    Ammonia (just incase)
    Nitrites (just incase)

    Hopefully by undertaking this experiment, along with others, we could as a community create an ultimate guide to raising the largest, most beautiful discus possible with the highest efficiency (least time, money and work) possible. We could identify where discus growth plateaus, and ultimately, help each individual decide exactly how many waterchanges / feedings etc, they should be doing.

  3. #3
    Registered Member zhuls1's Avatar
    Join Date
    Mar 2017
    Posts
    196
    iTrader
    0
    Real Name
    Zac

    Default Re: Experiment Ideas!

    Experiment #2

    How much food must be fed in order to obtain the largest potential discus

    Process
    Take 4 55g aquariums, split a large batch of fry evenly amongst the tanks
    Have all 4 aquariums running off a single sump (to ensure same water parameters)
    (alternatively put sponge filters in the aquariums and plumb the aquariums together so they share water parameters)

    Feed tank 1 4 feedings p/day
    Feed tank 2 5 feedings p/day
    Feed tank 3 6 feedings p/day
    Feed tank 4 7 feedings p/day

    Feed all tanks the same mass and type of food each feeding. (we could possibly find the best grams/fish roughly)

    Regularly record fish size (perhaps fortnightly?)

  4. #4
    Registered Member zhuls1's Avatar
    Join Date
    Mar 2017
    Posts
    196
    iTrader
    0
    Real Name
    Zac

    Default Re: Experiment Ideas!

    Experiment #3

    What factors are responsible for limitations in fish growth?

    Process
    Take 3 - 4 55g, split a large batch of fry evenly amongst the tanks, each having 3 spongefilters
    heat the whole room (ideally) to ensure all tanks are EXACTLY the same temp.
    Weigh the food so all tanks get identical amounts of food. ( you could, for example, feed the discus 4 times a day, 5 grams each feeding)
    Do 100% waterchange p/day(to minimise variables as much as possible)

    Tank 1 - Dose aquarium water with nitrates to maintain a concentration of 50ppm nitrate in the aquarium
    Tank 2 - Dose aquarium water with phosphates to maintain a concentration of 5ppm phosphate in the aquarium
    Tank 3 - Control
    Tank 4 - something else that could cause a reduction in fish growth

    As Im sure everyone's aware, the general concensus is that if you do less waterchanges your discus will simply not grow as big. I have read that some hypothesize that discus release hormones into the water that, in high concentrations, limit their growth. Many seem to have limited success using things like algae scrubbers and refugiums to reduce nitrates and phosphates. The purpose of this experiment is to identify exactly what is the culprit of reduced growth rates in discus. This may give us a better idea as to how we can treat it and maximise growth.

  5. #5
    Registered Member zhuls1's Avatar
    Join Date
    Mar 2017
    Posts
    196
    iTrader
    0
    Real Name
    Zac

    Default Re: Experiment Ideas!

    Experiment #4

    Are UV sterilisers truly helpful in increasing fish growth in high nutrient environments?

    Process
    Take 2 55g, split a large batch of fry evenly amongst the tanks, each having 3 spongefilters
    heat the whole room (ideally) to ensure all tanks are EXACTLY the same temp.
    Weigh the food so all tanks get identical amounts of food. ( you could, for example, feed the discus 4 times a day, 5 grams each feeding)
    Do 50% waterchange p/week(We want high nutrients, don't want to go to extreme though)

    Tank 1 - Control
    Tank 2 - Put on drastically OVERSIZED uv steriliser (This is because, in my opinion, manufacturers recommendations for UV sterilisers for hobbyist use are significantly larger tanks than they can really have any impact on, and we want to exaggerate results to see if they can have any impact on fish growth)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

pic of month             AquaticSuppliers.com