Big fish tanks hard to clean?

[Zuzu]

Yes also Oscars are very terrortorial as are a few other fish. but they also have a bottomless pit, if u don't feed them enough or get em feeders you'll soon learn fish are missing in your tank as one of my oscar and pacu i had in my 75 gal tank ate my 40.00 rose redline shark, just bought it the day before figured it was big enough where they wouldn't be able to munch on it, boy it was an expensive meal they each wanted it, grabbed an end, and well that was the end. they also eat crickets, spiders, grasshoppers, sometimes worms, flys, moths. so if you get one and find a pesky critter in your house, lunch is served

 

[lexx510]

I keep a 55 gallon African Cichlid tank. It's also fairly easy to clean. I just siphon the water out using a hose. I usually do a 60-80% water change at least every other week. It takes me about 10-15 minutes. Guava has become quite the fish keeper, too. Here she is performing a head count:

[ame=http://youtu.be/Aoa26i322-8?hd=1]Guava goes fishing - YouTube[/ame]