[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [APD] Hiccup
I believe BRiaN Forsythe wrote this email section below:
> I believe Paul's point (which mirrors what I've been thinking) is that for
> your experiment to be valid, you need a control. In this case, I believe
> the simplest would be to do the same to both tanks, just skipping the
> Safestart in one. Although you've done this before, you can't vouch for all
> of the contents of the atmosphere, room, whatever.
Unfortunately I only have the one tank.
As I did the same set up in the first experiment minus the adding of
bacteria then doesn't that count as a sort of 'control'?
You'll be telling me next that I need to ensure that I had the same clothes
on and my physical handling of the objects may make a difference.
Ideally I'd also need to purchase 2 tanks, heaters, filters,etc. from the
same production line stock.
OK, in a Lab these parameters would be controlled too. But it's just me in a
wee room in a wee hoose. :-)
200 Million years in the making...
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com