How acurate is your equipment? you may be surprised!

Discussion in 'General Aquatic Talk' started by Warren, Oct 26, 2006.

  1. Warren
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    Warren Noob

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    The other day I was at a friends house who Is a long time hobbyist, Last time I went there he had a beautiful 4 foot planted tank with amazing lush green growth, very well aquascaped and looked after.

    This time when I went for a visit the planted tank was bone dry. He had been trying to get his nitrates up and the test kit he was using to moniter the nitrate level was faulty, as a consequence the nitrate levels went though the roof, he lost all his fish and the tank sucumed to a massive algae boom that he could not get under controll(or maybe had no desire too) and decided to give-up. He wants to use the tank for some fry I gave him that he's growing out..so thats not such a bad thing.

    Today I was pp'ing some equipment in my laundry sink to clean it up before storage. I had 4 of those old style floating thermometers in the sink, After the pp was neutralized I notice a very, very big difference in temp readings the median temperature was in between of almost 15 degrees. If I was using one of the low-reading ones on a heat treatment the results could have been real bad!

    I now alot of people preach the merits of 2 thermometers in the tank or 2 heaters, but not many actually do that, I'm guilty of that too, spending money on extra equipment Is mostly an after thought if its not an emergency and really would you want to buy extra heaters or more discus?

    So please check your heaters, test kits, meters, thermometers, meds, etc. on a regular basis! it increases your chance of avoiding a disaster and its not too time consuming.

    Regards,

    Warren
     
  2. Cameron
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    Cameron Green fingers

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    Good advice Warren

    This Winter I lost quite a few killies due to heaters getting stuck in the on position, boiled fish mmmmmmm.

    I have since removed every damn heater from my tanks, and no they were not the cheapo kind!
    When it comes to heaters and such you really should buy the best you can afford, in the long run you will benefit from it.

    As for test kits I say chuck em all away :)
     
  3. R.C.
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    R.C. Moderator Staff Member

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    I've got a couple of those lying around as well. Not a single one of them gives the same reading.   :mad:  
     
  4. Peter
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    Peter Algae harvester

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    Thanks for the heads up... will pay more attention to my stuff
     
  5. Nicolaas Nel
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    Nicolaas Nel Algae harvester

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    Very interesting! Lets see how others react to this topic!
     
  6. melissa
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    melissa Algae harvester

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    Hehe... I went out and bought another thermometer!
     
  7. Anonymous
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    I have 2 thermometers in my tank and they both give different reading. I'm going to buy a digital thermometer as soon as it's payday.
     
  8. Pedro
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    Pedro Algae harvester

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    Do you reckon that the digital thermo's will be more accurate? Would more than 1 be required?
     
  9. Warren
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    Warren Noob

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    With regards to digital thermo's, i have 2, one in my discus tank the other in my 3 foot. they both are the same make (can't recall the make offhand now).

    I took the one and put it in my discus tank. The one thermostat had a constant reading of 29.5 and the other one 28.2.

    One cannot hold true to these readings.
     
  10. Philip
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    Philip Algae harvester

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    Warren I have experienced the same problem in a local petshop, where the same brand on the self, not in water was giving different reading.
    A true reading thermometer which I built for a guy in Constanctia is state of the art and extremely accurate. It gives you the set temp that you want and a true reading of what the water is, and the difference depends on what difference you set be it 1 degree etc.
     
  11. Alec
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    Alec Noob

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    One quick check I do when buying a thermometer, is to compare the readings on a number of them. Usually there are a few for sale in the shop, and if the all give the same reading I tend to trust them, but if they give different readings - which one is correct!?
    Alec
     
  12. banjo
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    banjo Algae harvester

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    I have 2 digital thermometers in my 4ft. One on each end and the readings are different on both. I don't know what to do.
     
  13. Cameron
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    Cameron Green fingers

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    What is the difference between them, take an average and call it quits :)
     
  14. banjo
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    banjo Algae harvester

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    the difference is about 1.5 degrees ... so if that is the case then my tank is at about 25 degrees.
     
  15. Anonymous
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    A 4 foot is quite a lot of water and the temp may change from 1 end to the other. Put them next to eachother and check the reading. If they are the same then don't worry.
     
  16. Cameron
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    Cameron Green fingers

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    If they're digital thermometers they can't be removed or else they're null and void, so i doubt he could place them next to each other.

    1.5 degrees is not much, 25 sounds perfectly right to me, granted I'm not in Cape Town but here in JHB the weather is cool to warm today and my tanks were sitting on about 23 last night. Average the 2 readings and you sould be pretty much spot on the true temp.
     
  17. banjo
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    banjo Algae harvester

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    Thanks Jared ... never thought of it that way.
     

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