I want to switch my 125 Gallon red-bellied piranha tank over from gravel and fake plants to soil and live plants. I was wondering what type of soil I would need to do so, and how much? Any useful info. about switching things over would be great!
Mineralized top soil
Regular inert substrate with root tabs
As for how much, they vary but top soil n sand will be the cheapest.
Any of those will do, but I'd leave out the top soil since it takes awhile to prepare it.
You'll probably will need to find a tank for your piranha while the water leaches out all the harmful stuff, so a friend, a tank, or a fish sitter. Some lfs will watch your fish for you