Substrate algae

Discussion in 'Beginner Discussions' started by Lowflyer, 21 Jun 2009.

  1. Lowflyer

    Lowflyer

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    Hey guys

    I'm having a bit of a problem as I am getting hair algae on the substrate more than anywhere else, is this because the snails can't eat on the substrate, cos my rocks are almost completely clean. The way I am controlling it at the moment is by mixing the substrate slightly every now and then and vacuuming every weekend.

    Cheers;)
     
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  3. brentnorm

    brentnorm

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    What substrate are you using? Size, make
     
  4. Lowflyer

    Lowflyer Thread Starter

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    It's finely crushed coral sand, pieces about 2mm in diameter. It's Hagen I think.
     
  5. Kunhardt

    Kunhardt

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    Maybe trapped detritus in the substrate? Same reasons it would grow on your rocks?

    lol ask Viper for help, I remember seeing a lot of GHA on his substrate at one point and last time he updated his thread it was gone. :)
     
  6. jacquesb

    jacquesb Retired Moderator

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    Hi Luke - have you ever tried "lightly stirring" the top +-1 to 1.5cm of your substrate? It is QUITE possible that you have detritus within the substrate...... which could be giving off localized nutrients (nitrates and phosphates).....
     
  7. brentnorm

    brentnorm

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    wouldn't you rather syphon the top than stir?
     
  8. jacquesb

    jacquesb Retired Moderator

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    Brent - I use the "stirring method" to feed my corals...... If you siphon, you loose a HUGE AMOUNT of coral food.....
     
  9. Tridan

    Tridan

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    Luke as mentioned before, try and increase the depth of your sand bed, from personal experience, this should help. It worked for me bud.
     
  10. brentnorm

    brentnorm

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    Ah, ok then. If you didn't have a lot of corals would you rather siphon?
     
  11. riyadhessa

    riyadhessa

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    brentnorm i do not have a lot of corals and i use the stirring method, its works for...
     
  12. brentnorm

    brentnorm

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    That is good to know. Will give it a try.
     
  13. Lowflyer

    Lowflyer Thread Starter

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    Jacques, I often stir the surface, probably every 3 days or so.

    Tridan is just trying to make me spend money, ahahahaha, just kidding Dave, I think I might just go and buy myself a bag of reggies play sand and use that. Would it be ok to mix the two substrates?
     
  14. Jaak

    Jaak

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    Or you could always get a sand sifting gobie...;)
     
  15. brentnorm

    brentnorm

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    Just make sure that you can keep him fed. If he clears up the problem completely what will he eat?
     
  16. Nemos Janitor

    Nemos Janitor

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    OK i will dodge the bullets from Hennie :) But this is my take on the issue in laymen terms.

    The substrate is a form of calcium, be it crushed coral or calcium carbonate. Over time Phosphate has bound to the carbonate irons as it does to live rock.
    Algae thrives on Phosphate and will therefore grow on surfaces leaching their food.

    So the remedy is to remove PO4. By adding another layer of substrate will help in the short term, BUT the new substrate will also bind the PO4 and the problem will reoccur in time.
     
  17. FransSny

    FransSny

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    2 mm substrate is bit big for a sandshifter (MHO) rather go jacques route and do a bit of "sirring" , this will help in the meantime, but i think try and find the cause ...not the cure, your PO4 is coming from somewhere...find that and algea will sort itself
     
  18. Lowflyer

    Lowflyer Thread Starter

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    Thanks man, some valuable information there that I have never heard of, what do you think of Reggies sand as substrate, leach PO4 or not?

    I agree, I think this substrate is too coarse for a sand sifter. I do stir the substrate as said before.
     
  19. Tony

    Tony

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    Reggies wont leach or absorb anything because it's not porous. Coral skeletons are whihc is why they absorb phosphates and release them when saturated.
     
  20. Lowflyer

    Lowflyer Thread Starter

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    Thanks Tony, makes sense, I've been in this hobby for just over a year now and still feel like a complete noob:whistling:. Haha, thanks again Tony
     
  21. Nemos Janitor

    Nemos Janitor

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    Hmmm... Is Reggies play sand, a silica sand?
     
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