i love the colour it turns my tank water i think it makes it look really natural. its also a pain in the ass to stop it from happeneing. soaking the wood works a bit but we soaked some in the shop for about 3 days, changing the water everyday and it still turned the bloody water brown. looked awesome though
Water changes in the tank and soaking the wood will help remove the tannins- the length of time bogwood leaks out tannins for varies greatly, a lot comes down to the size of the individual peices of wood. I got two very hefty peices of bogwood (about 3ft long each) 3 months ago for my goldfish tank and they are still staining the water on a regular basis.
However there's nothing wrong with tannins on the other hand, they can even be benneficial for many fish (particularly for a lot of types of catfish) as tannins have mild antibiotic effects on the water .
thaks all for the comments. i do like the colour of the tannin water but it gotten really bad/dark. so i will keep up the water changes and try to get a carbon fibire pad for my external filter. thanks again
I have a piece of mopani wood in my community tank - I soaked it for 24 hours and had no trouble with tannins leaching out.
I have another bit in my 6 gal though which I soaked and was still leaching so I boiled it - twice and soaked overnight again and 3 months later it's still staining the water. I manage to keep it pretty clear though with water changes. I wouldn't mind it in the community tank, but since the 6 gal is intended for a Betta I want clear water so as to see it's colours!!
If you don't want the tannis in, then you have to do a lot of pre-soaking. That will also help with making sure it stays at the bottom of your tank when you're ready to put it in. I got some grapewood and it took nearly a month of every other day water changes in the bucket for all of the tannis to be gone. Even now, one of the pieces is turning one of my tanks a yellow color despite all that effort. Can't imagine what it would have been like without all the pre-soaking.
out of topic question - but does wood in the tank every rot or anything like that? I just got 4 pieces of it to put in my tanks, and I am wondering how long they last. I don't remember what kind of wood it was, but it was one of those asian / african woods that sink right away.
I soaked mine for 3 days, and they still turned the water in each tank a slight brown tint.