Basically you need more light so you can have a faster shutter speed and higher aperture (F Number). More light will also make it easier for the...
Sweet, I've got the same camera but haven't dabbled with maco yet.
I think that stem plants losing their lower leaves is a really good indicator of CO2 problems. Unfortunately I don't have any photos of it though!
A snap of one of my barbs.
Cleaned up using the GIMP's heal tool! Then adjusted colour and contrast using Darktable.
This (US) page has buyers info on cameras, lenses etc... Cameras on The Wirecutter
Sorry to throw a cat amongst the pigeons but if you aren't decided about which type of camera to buy you should definitely consider mirrorless...
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