Coconut cave

If you see the photos below you would see the coconut which I cut it in a shape of a cave, If I want to put this in a 5 gallon tank for a betta fish ( I didn’t buy the tank yet ) what should I do with this coconut, I know that I should boil it so it doesn’t color the water, but I would like to know if there is another thing I am supposed to do
Also I want to know if the coconut could affect the biological cycle.

 

personally i wouldnt risk it, and there may be some really small sharp bits your betta may tear his fins on.

maybe look into a betta log for a hiding/resting spot

 

I've read that the coconuts can rot in the tank! I know these are sold on like Amazon, but if you're looking for something natural stick with rocks or driftwood.

 

That is not suitable as a cave in a tank.
that coconut still has all the outside husk on it.

Its a lot of work to remove the outside shell on that nut. I don’t think it’s worth the effort?

In the centre of that is a nut like this photo.
These are just a couple of dollars. There is still work needed on this to sand the nut smooth.

 

I've read that the coconuts can rot in the tank! I know these are sold on like Amazon, but if you're looking for something natural stick with rocks or driftwood.

I think I should stick with something natural if thats the case

personally i wouldnt risk it, and there may be some really small sharp bits your betta may tear his fins on.

maybe look into a betta log for a hiding/resting spot

Yeah I’ll forget about the coconut cave, I didn’t like risking in aquariums

That is not suitable as a cave in a tank.
that coconut still has all the outside husk on it.

Its a lot of work to remove the outside shell on that nut. I don’t think it’s worth the effort?

In the centre of that is a nut like this photo. These are just a couple of dollars. There is still work needed on this to sand the nut smooth.

I think buying something like a rock with a hole or something is a better idea that the coconut as someone just told me in this thread that it could rot

 

It’s always a good idea to research everything and get a second opinion. That coconut is young and green. Inside it you may find the hard brown nut that is used by many of us? Like all wood it will rot eventually. I have some I made myself 3 years ago that show no more sign of rotting than any wood. If making things for your aquarium is of interest to you research first OK.