FishkeeperLinz
Fish Crazy
Questions; how to do ‘black water setup’? I want to do it to my tank.
Just add anything that releases tannins into the water that is safe for fish - like driftwood and the Indian almond leaves you can see in my pics. You can get almond leaves from eBay and Amazon.
Soak them in a bucket long enough for them to sink, and, if your water's soft, keep an eye on pH, GH and KH (which reminds me - I'd better check my levels).
Obviously, wood is going to stop releasing tannins eventually, but the leaves rot away, so need replacing.