fluval 406

[monsteraqua]

can I put a fluval 406 in my 4x2x2ft tank, with a couple of fish, (arowana, stingray, peacock bass, etc)

 

[Tobiassorensen]

Well you can but that wont handle the load of one stingray IMHO.

 

[monsteraqua]

so how often should I change the water the pH in SG is around 7.1

 

[Tobiassorensen]

so how often should I change the water the pH in SG is around 7.1

With that small filter in that small tank id say 80-90% every day. I have a tank for growouts thats 5x2x2' and with well adequate filtration with a showerfilter, a sump and one eheim 2262 just for one small raypup and im still changing 80% twice a week.