[Lupin]

Hi and welcome aboard.:wave:

I doubt it was orange. More like amber due to tannins leached by driftwood. Don't worry too much about it. What are your fish? If your fish originated from the area where the water is particularly soft and acidic, there's nothing to worry about.

There's nothing you can do to stop the wood from leaching tannins. Boiling can reduce the amount leached though or you can run activated carbon for about 3-4 weeks and remove it.

 

[Lupin]

Most of your fish are from the origin where the water is soft and acidic. They will benefit from the tannins leached by your woods although you have a choice of whether you like the tannins or not. Tannins won't harm your fish except the fish that will never thrive well on long-term basis like the platies, other livebearers that we commonly see and many others.