Can I use back arowana water to start marine tank?

[Patrick]

I am just wondering whether I can use the water which I keep arowana and add sea salt to start a marine tank. Instead of cycling whole tank of new water, will do 30% of water change. I intend to keep marine fishes only. All advice welcome. Thanks

[Kalib]

I would advise against re-using the water as we don't know what's in the arowana water. It may contain substances that could cause problems to marine fish. You will still have to go through the cycling process all over again as saltwater aquarium is totally different from freshwater aquarium.

[Patrick]

I would advise against re-using the water as we don't know what's in the arowana water. It may contain substances that could cause problems to marine fish. You will still have to go through the cycling process all over again as saltwater aquarium is totally different from freshwater aquarium.

Thanks bro for your advice.