The Arowana is a very massive but graceful fish which makes an incredibly interesting freshwater tank inhabitant. beams: The beams act to aid the floor joists. These beams could be made of extensive-flange metal beams (frequently and incorrectly referred to as an I-beam) or they might be wood triple 2 https://keegandqcmv.blogtov.com/17905036/an-unbiased-view-of-aquarium-setup-tips