Sorry guys about all the questions but my arowana is acting strange.

  • We are currently upgrading MFK. thanks! -neo
beginner to beginner talk:

i was always told to not go more than 50% wc (which is considered a big water change)
And I feel you are overcomplicating your water change technique. I,for one, simply pass a garden hose through a window, connect it to a syphon and let the it do the rest. Filling up is a bit different for me since I have a big water tank on the roof where water sits at least a week.

If this is your first big fish it is going to be overwhelming at the beginning but quickly you'll "learn" your tank and fish and you'll kinda instinctively know what your tank and fish need. Have a look at my thread "first arowana" for example. lots of stupid questions asked there. That's how you learn.
 
go by water test not size....
Remember bud, we do water changes to take toxins out of the water. The toxins are caused by fish waste. The amount of fish waste is determined by the fish size and the fish itself. As the fish grows larger it will produce more waste and whatever % water change was acceptable before may not be acceptable for now. You will have to increase them as the fish grows. The only way to test the parameters is with a test kit, the majority of people on here will reccommend the api master freshwater test kit. It runs about $30.
 
Also I'd like to point out that while 50% is a good water change number generally for most fish if you slowly move it upwards and keep it on schedule you can do much larger water changes regularly and the fish won't have a problem with it to put it simply. Discus keepers often do around 80-90% water changes.
And man yall respond fast.
 
So should I begin with 30 percent water changes and go up 10 percent every week until I reach 60? then go up once my jardini,peacock bass, flordia gar, and 3 bichirs get large?
 
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