Hi Tom,
Yet again you have show some fantastic pictures and I pleased that your tank is still the inspiration that it is even a year later.
Can I ask you something about your substrate? I notices that you used a John Innes compost with a sand cap. Is this the Walstad method that I’ve also read about?
I’ve been debating whether to get use something like TMC’s aquagro nutrasoil which is good for plants and can help to reduce ph but its just so darn expensive.
Does your substrate lower ph? Is yours a low cost method?
Thanks
Mike