Word of warning

Discussion in 'General Planted Tank Discussions' started by Themuleous, 20 Apr 2009.

  1. Themuleous

    Themuleous Member

    Messages:
    4,126
    Location:
    Aston, Oxfordshire
    Hi all :)

    Just wanted to pass on a bit of a warning re open top tanks, glass outlets and evaporation. Having rescaped my 4ft over the Easter bank hols, I had to go away from Wednesday until Sunday. During this time the water level in the tank dropped by around 2cm (dont ask, I'm sure I filled it up before I left) to the point at which the glass outlet was poking out above the waters surface. That created masses of surface movement (as you can imagine) which resulted in a very blue DC. For how many days I dont know, but the tank is now covered in brown thread algae and the plants look crap due to having been forced to work by the high light but without the CO2 to cope with it.

    Don't make the same mistake I have.

    Sam
     
  2. aaronnorth

    aaronnorth Member

    Messages:
    3,955
    Location:
    worksop, nottinghamshire
    i feel very sorry for you, you are having no luck ATM :(
    this is the reason why i am having a plastic cover on mine.
     
  3. altaaffe

    altaaffe Member

    Messages:
    309
    Location:
    Thornhill, Egremont, Cumbria
    I do the same, have a cover made from 2mm perspex cut to size for the equipment.
    Also stops the parrot going for a bath !!
     
  4. TLH

    TLH Member

    Messages:
    186
    Location:
    Northants
    I've got glass sliding covers on mine but I still see evaporation on a lesser scale. I don't suppose you can do much on an open top rimless tank without making them look naff apart from topping up.
     
  5. JamesM

    JamesM Member

    Messages:
    1,913
    Location:
    The BIG End, South Wales
    This is another reason I hate open top tanks... I cover my 60cm with perspex - my 120cm has glass covers, which I'll also be getting for my optiwhite. Eventually.
     
  6. aaronnorth

    aaronnorth Member

    Messages:
    3,955
    Location:
    worksop, nottinghamshire
    how much is perspex anyway?
     
  7. GreenNeedle

    GreenNeedle Member

    Messages:
    2,706
    Location:
    Lincoln UK
    More expensive than a 1 litre jug and water ;)

    AC
     
  8. aaronnorth

    aaronnorth Member

    Messages:
    3,955
    Location:
    worksop, nottinghamshire
    lol, it isnt only for that reason, i dont want any fish jumping out, and my mum is a childminder which means i could have a washing liquid incident :?
     
  9. Graeme Edwards

    Graeme Edwards Founder Staff Member

    Messages:
    1,161
    Location:
    Wirral/Chester Cheshire.
    Arrrr mate, must grumble, heavy hit after heavy hit. :arghh:
     
  10. GreenNeedle

    GreenNeedle Member

    Messages:
    2,706
    Location:
    Lincoln UK
    A bolt, firm wrist and shouting a lot has stopped that sort of incident. wife says I need anger management. Seconds before she beats me up for no reason :lol:

    AC
     
  11. Themuleous

    Themuleous Member

    Messages:
    4,126
    Location:
    Aston, Oxfordshire
    Cheers Graeme, appreciate it.

    My main grumble with covers is the condensation you get on them. First it looks unslightly (though so does an algae filled tank! :lol:) and it must have an effect on light getting to the tank. Being rimless I also would struggle to get one to fit, though these from ADA seem like a neat solution should I eventually give in and get a cover.

    http://www.adana.co.jp/_e_product/81_index.html

    Sam
     
  12. Dave Spencer

    Dave Spencer Member

    Messages:
    1,389
    Location:
    N. Wales
    Maybe you could only cover it when you go away. I hate the look of glass or perspex covers, personally. It ruins the look of the tank.

    Dave.
     
  13. aaronnorth

    aaronnorth Member

    Messages:
    3,955
    Location:
    worksop, nottinghamshire
    :lol:
    a sheet would cost me around £20 off ebay, B&Q had nothing. I will look for a cheaper source, or something like a clerseal condensation cover. £5 will do me :D
     
  14. Superman

    Superman Member

    Messages:
    1,804
    Location:
    Cheltenham
    This must be half of my problems. Sometimes I get lots of condensation and tbh, I don't top up as often as I should.
    I think I should be more careful.
     
  15. Simon D

    Simon D Member

    Messages:
    460
    Location:
    Leicestershire
    Sorry to hear about your latest problem.

    I got an off-cut of perspex from my local glaziers for about £2.50 to cover a 60cm tank. It's easy to cut (just score on both sides with a craft or Stanley knife and snap off, then file corners and equipment access points to shape). I fitted a drawer handle to make it easier to lift for access.

    I don't find too much problem with condensation build up and don't think it blocks any light anyway. It doesn't need to be a tight fit (around piping etc.) to eliminate evaporation.
     
  16. sgl101

    sgl101 Member

    Messages:
    33
    im just mygrating from a 10 foot reef tank and just learning how you do things, im very suprised to hear though that no one hear uses an auto top up system as a way of keeping tank topped up, a way of dosing and also a way of keeping stability in water peramiters.

    if my reef tak had to much evaperation the salinity was effected and that resulted in cyno bacteria blooms in low flow areas

    I will be using a top up system in my planted tank

    Regards Steve
     
  17. Themuleous

    Themuleous Member

    Messages:
    4,126
    Location:
    Aston, Oxfordshire
    Some people use auto doing kits, but to be honest its just not needed. There are more important things to spend money on. Though if you have it guess it cant hurt :)

    Sam
     
  18. nry

    nry Member

    Messages:
    1,239
    Location:
    Cumbria, UK
    If you know anyone who works in a High or Secondary school you could ask there Design Tech dept. for some perspex, my place has loads of it.
     
  19. sgl101

    sgl101 Member

    Messages:
    33

    you can pick them up from £15 on ebay or build your own all components available from maplin and less than a tenner

    Steve
     
  20. Themuleous

    Themuleous Member

    Messages:
    4,126
    Location:
    Aston, Oxfordshire
    Right, its just another bit of kit to go wrong in my book though, I dont even use a solenoid on my CO2. At least if I add the ferts myself I know for sure they went it, although that doesn't then account for my being forgetful! :lol:

    Sam
     

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