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    Compact regulators

    I'm looking for a new regulator, and have looked at the compact ones several times, like this one. http://cgi.ebay.co.uk/Aquarium-Fish-Tan ... 230db03336 Just wondered if anyone has used one and if they have a built in needle valve or not? The main knob on the top I assume is just to open...
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    Evaporation and CO2 stability

    Simple question really; Could evaporation cause a CO2 instability? Before I put a cover on it (partly to test this question), my 40lt used to lose c.5lt a week and has been atrocious at growing plants since I set it up a few months back. Could the loss of what amounts to 12.5% of the water...
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    Metal diffusers

    Anyone using a stainless steel diffusers yet? Only found this recently. Seems like a nice diffuser when it comes to cleaning, being able to take it apart I mean. http://cgi.ebay.co.uk/CO2-Aquarium-Plan ... 2556f2f92a Sam
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    Cheap pressurised CO2 system DIY guide

    First the obligatory safety warning (sorry), this tutorial uses a cylinder pressurised to around 50psi or 3.5 bar. Gas under pressure can be dangerous if not treated with respect. If something goes wrong that’s your fault, not mine. I accept NO responsibility for loss, damage or injury...
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    Disposable CO2 cylinders

    Hi All, I'm aware of the eBay disposable cylinders and weldUK, but just wondered if anyone has found any ultra cheap 600g CO2 cylinders? Cheapest I've found seems to be around £14 once you include postage? Also is there anything on thread size I need to be aware of or like normal cylinders...
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    Smallest reg?

    Just found this on ebay http://cgi.ebay.co.uk/CO2-Adjuster-Regu ... 286.c0.m14 It has to be a contender for the worlds smallest regulator! Sam
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    Very high CO2

    Simple question, can very high CO2 actually be bad for the plants? Well perhaps not 'bad' but counterproductive in terms of the plant growth? It is better to have the DC in the green than the yellow? Cheers Sam
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    Bromo blue

    Does any one know of a list of pH test kits that use bromo blue reagent? I know API low range does, any others? Cheers Sam
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    Water CO2 capacity

    One for all you chemists out there :) Does water have a limit to the amount of CO2 it can hold? When I set up my new tank, I pumped CO2 into as being a big tank I thought it would need loots. Well the lack of current plant growth and minimal surface water movement I think has meant that it is...
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    Bargain CO2!!!!!

    For anyone in Liverpool this is a complete bargain, £3 for an FE! http://cgi.ebay.co.uk/10-x-2kg-co2-fire ... dZViewItem If only it was closer to home, I have 'pay for it now' instantly!! Sam
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    Cheap fire extinguisher

    I just got a 2kg fire extinguisher from eBay for £21.45 including postage, the 5kg would work out even cheaper in the long run. This is probably the cheapest place I've found. Will be trying it on my German reg, so will be sure to let people know if it works out OK, there should be no reason...
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