Prawn Connery
Well-Known Member
I guess I'd best chip in about Bunnings coco and fungus gnats etc now 
Best thing for gnats is this – completely organic: https://www.hydroexperts.com.au/CX-Horticulture-Tanlin-Drops-20ML
Kills the larvae that eat the roots – flying gnats do no damage to plants.
I used the compressed coco bricks for a long time, but it was always a PIA to flush them in warm water first. These days, Hygen coco is something like $20 a bag (if you can find a cheap hydro store) and I actually prefer it to Canna, as it is pre-flushed and pre-charged with Cal-Mag and is not as coarse as Canna – it has a nice consistency.
I haven't tried the Bunnings coco bags yet, but I also used similar no-name coco bags for a long time and had good results. It's hard to go wrong in coco, but to me $20 is cheap for a name-brand coco, so that's what I use now. At least you know it's been properly flushed before-hand (though run-to-waste will help flush out excess salts, though not all).
Best thing for gnats is this – completely organic: https://www.hydroexperts.com.au/CX-Horticulture-Tanlin-Drops-20ML
Kills the larvae that eat the roots – flying gnats do no damage to plants.
I used the compressed coco bricks for a long time, but it was always a PIA to flush them in warm water first. These days, Hygen coco is something like $20 a bag (if you can find a cheap hydro store) and I actually prefer it to Canna, as it is pre-flushed and pre-charged with Cal-Mag and is not as coarse as Canna – it has a nice consistency.
I haven't tried the Bunnings coco bags yet, but I also used similar no-name coco bags for a long time and had good results. It's hard to go wrong in coco, but to me $20 is cheap for a name-brand coco, so that's what I use now. At least you know it's been properly flushed before-hand (though run-to-waste will help flush out excess salts, though not all).
