Water clarity

Discussion in 'General Discussions and Advice' started by Tim S, 12 Apr 2010.

  1. Tim S

    Tim S

    Joined:
    11 Jul 2009
    Posts:
    430
    Likes Received:
    1
    Location:
    Cape Town
    Hi all,

    What's the secret to crystal clear water. Looking through my dt end on, the water has a greenish / yellow colour to it. I have a big skimmer, 7 layers of filter wool and a vortch with sponge which collects a massive amunt of stuff. I do have a bit of slimy algae growing. Could this be the cause? I had some carbon in the sump but did not seem to make any diffirence.

    Any advise please.
     
  2. AdS Guest




    to hide all adverts.
  3. inflames

    inflames

    Joined:
    29 Oct 2008
    Posts:
    923
    Likes Received:
    9
    Location:
    Randparkridge (Johannesburg)
    Regular Water Changes! Otherwise the carbon does work, but it needs to be changed every 4 to 6 weeks! How big is your tank end to end? How big is your bio load, try feeding a little less if possible, otherwise there is not much more you can do!
     
  4. Singularity

    Singularity Hmmm amper!

    Joined:
    3 Apr 2008
    Posts:
    2,496
    Likes Received:
    32
    Location:
    Potch/Centurion/Brooklyn
    Purigen will give you crystal clear water.
     
  5. toppdogg

    toppdogg

    Joined:
    9 Mar 2009
    Posts:
    1,107
    Likes Received:
    4
    Location:
    port elizabeth
    put your carbon in a reactor will make a world of diffs
    did in my tank
    just my 2c
     
  6. Tim S

    Tim S Thread Starter

    Joined:
    11 Jul 2009
    Posts:
    430
    Likes Received:
    1
    Location:
    Cape Town
    Tank length is 1500mm. Have 19 fish, 4 shrimp, hammer, brain, xenia and some mushrooms. Fish are not very big though. I feed flakes and pellets twice a day and frozen seafood mix once a day. If any food does not get eaten, the overflow and vortch pulls it out straight away. Due to the efficiency of the system I was concerned that the scavangers do not get any or enough food. So I tried to overfeed, but the spare food gets picked up very quickly by the pumps.

    I did a water change (100 litres of 600 litres) last weekend and usually do this every 3 to 4 weeks.
     
  7. Tremayn

    Tremayn

    Joined:
    21 Mar 2010
    Posts:
    5,226
    Likes Received:
    69
    Location:
    Lenasia
    you should do a 10% change min once a week, 20% in 2 weeks, but once a week is good. Make sure that your carbon isnt old
     
  8. brentnorm

    brentnorm

    Joined:
    6 Dec 2007
    Posts:
    2,198
    Likes Received:
    11
    Location:
    Cape Town
    Purigen definately works very well.
     
  9. ziyaadb

    ziyaadb

    Joined:
    18 Jul 2007
    Posts:
    5,566
    Likes Received:
    48
    Location:
    JHB-Lenzz
    i can vouch for purigen as well
     
  10. Tobes

    Tobes Retired Moderator

    Joined:
    30 Nov 2007
    Posts:
    9,482
    Likes Received:
    118
    Location:
    A Beautiful place!
    What carbon do you run?
    Do you defrost the frozen food straight away in the tank? If yes, you need to defrost in a glass, rince off the juices and then feed. The juices can fuel nuisance algae if not enough filter feeders or inadequate filtratrion or lack of waterchanges.
    Do 10% per week as you'll regularly remove nutrients and add trace elements that was used up. Like iodene for example doesn't stay long in the system as skimming removes it. Shrimps and all other crustaseans, including pods need iodene to molt (shed their exoskeleton). Corals also need iodene. You can dose iodene, but cannot test for it so that makes it dangerous if you overdose. Rather do regular waterchanges.
    I never dosed anything like iodene, or any other supplement for that matter, just 10% weekly waterchanges ;)
     
  11. Tim S

    Tim S Thread Starter

    Joined:
    11 Jul 2009
    Posts:
    430
    Likes Received:
    1
    Location:
    Cape Town
    Hi Tobes,
    I defrost the food by placing it on the brace of the tank after dipping it in the water. If I don't dip it to defrost, it is very sticky. There is some very fine matter which comes off when I feed the fish which dispuses in the water. I'll try rinse the food before putting in DT but how do you 'filter' off the fine stuff and keep the food? Might need something like an old tea strainer?

    How do you do it?
     
  12. Tobes

    Tobes Retired Moderator

    Joined:
    30 Nov 2007
    Posts:
    9,482
    Likes Received:
    118
    Location:
    A Beautiful place!
    The right way is to defrost it in cold RO water. Then pour it through a tea strainer or small sieve. I then take a small bit of tank water and rinse it with that through the strainer as well just to flush off any access juice.
    Then I put the strainer upside down on the glass and pour tank water over it to rinse off the food back into the glass. I then suck up the food with a turkey baster or just throw it in the tank bit by bit. Sounds like a lot of work, but doesn't really take that long.
     
  13. Suhayl

    Suhayl

    Joined:
    24 Sep 2007
    Posts:
    1,229
    Likes Received:
    18
    You have some phosphates, get a liquid phosphate remover. Also go check again your tds on your ro unit. Test nitrates also. Try running the carbon in a reacter and get good quality carbon or else it wont work.
     
  14. Tim S

    Tim S Thread Starter

    Joined:
    11 Jul 2009
    Posts:
    430
    Likes Received:
    1
    Location:
    Cape Town
    I'll try it. First need to find a 19th century tea strainer. :)
     
  15. Singularity

    Singularity Hmmm amper!

    Joined:
    3 Apr 2008
    Posts:
    2,496
    Likes Received:
    32
    Location:
    Potch/Centurion/Brooklyn
    i lold
     
  16. Tobes

    Tobes Retired Moderator

    Joined:
    30 Nov 2007
    Posts:
    9,482
    Likes Received:
    118
    Location:
    A Beautiful place!
    You get these small plastic ones - the steel ones will rust. Check in the "bake a cake" section in the shops :p
     
  17. Nemos Janitor

    Nemos Janitor

    Joined:
    7 Feb 2009
    Posts:
    8,384
    Likes Received:
    286
    Location:
    Joe's Mountain
    Water yellowing is caused by a build up of DOC. Now there are many remedies however do not cure too quickly. The water yellowing acts as a UV filter. So reduce slowly.

    First off, the water change regime need to be revised for long term clarity sustainability.
    Second, a large skimmer does not mean that it is removing DOC. You need an efficient one suitable for the tank and producing large QTY of skimmate.

    However if your water is green then it is could be Plankton. A simple blackout should fix that one.
     
  18. LuckyFish

    LuckyFish MASA Contributor

    Joined:
    23 Nov 2009
    Posts:
    2,531
    Likes Received:
    103
    Location:
    Cape Town
    Tim, need a strainer? Can give you a piece of plankton mesh. Glue it into a small plastic pot, like the ones from the cottage cheese.
    I strongly advice to defrost and strain the food before feeding. Especially for frozen adult brines. They come in a soup full of diseases. Learnt my lesson back in 1995 with beeing lazy and holding the frozen block in the current. Every new introduced fish died in no time.
     
  19. LuckyFish

    LuckyFish MASA Contributor

    Joined:
    23 Nov 2009
    Posts:
    2,531
    Likes Received:
    103
    Location:
    Cape Town
    Keith is right. To make it more clear for you. Add 0.5 litre activated carbon in one go, and you burn all your corals in one go, too. But your water should be clear!

    I don´t know, who is aware of the following:

    Activated carbon should be washed and afterwards dumped into almost boiling water, before using it.
    Then the carbon gets really activated. I always wanted to try, if it might be possible to reactivate the carbon, with boiling it.

    For my big tank in Germany, I made a carbon filter. Actually a piece of pipe where the water gets pushed through the carbon.
    With putting in in a bag and dumping the carbon into the sump, you waste a lot of money. The water musn´t flow around the carbon, it must flow through the carbon.

    Tim, if you want, I can pop around, bring you a piece of plankton mesh and we can have a look how to plumb in, my DIY milkfilter. Have we met before?
    Sorry met so many people in this hobby, I hardly can remember the names.
     
  20. Singularity

    Singularity Hmmm amper!

    Joined:
    3 Apr 2008
    Posts:
    2,496
    Likes Received:
    32
    Location:
    Potch/Centurion/Brooklyn
    I know about this but only because it was suggested on a box of eheim carbon, only did it with the eheim carbon as none of the other brands recommend this on their packaging. If i get a nice fizzing sound it is usually good enough for me.
     
  21. LuckyFish

    LuckyFish MASA Contributor

    Joined:
    23 Nov 2009
    Posts:
    2,531
    Likes Received:
    103
    Location:
    Cape Town
    Think about it. If I would produce activated carbon, why must I tell the customer how to make more use of it? The customer buys my carbon every month. So now he will buy only every second month. You also believe, that what´s written on the bottle of trace elements, do you?

    Everybody who is selling something, wants to make as much profit as possible.
    More or less!


    Fizzing sound? Put the carbon into very hot water and then hear that sound!
     
Recent Posts

Loading...
Similar Threads - Water clarity Forum Date
water clarity General Discussions and Advice 31 Mar 2013
2Oceans - water clarity General Discussions and Advice 18 Dec 2009
Ways to reduce Water Temperature General Discussions and Advice Thursday at 13:24
TDS Reading of RO Water Water Parameters and Additives 17 Nov 2016
Starting a new tank - water question Beginner Discussions 12 Nov 2016
Water shortages/restrictions General Discussions and Advice 9 Nov 2016
Cloudy water Water Parameters and Additives 7 Nov 2016