Hi --
I bought a used 30-gallon aquarium from somebody. At the bottom of the tank, there is a plastic ribbed "flooring" with a bunch of these other plastic frames attached. What are these green and blue plastic frame thingies for? See attached photo (or visit https://test1.ourschoolpages.com/Image/Products/PlasticThingies.jpg
Thank you!
--Rajeev
I bought a used 30-gallon aquarium from somebody. At the bottom of the tank, there is a plastic ribbed "flooring" with a bunch of these other plastic frames attached. What are these green and blue plastic frame thingies for? See attached photo (or visit https://test1.ourschoolpages.com/Image/Products/PlasticThingies.jpg
Thank you!
--Rajeev