Fish tank Pipes decor

Just a fish tank decor that I knocked up its rough and ready ! I have added the profile with lightning infill at 15% in order to make the model nearly hollow in order to fill with water in the tank this should stop it floating offAlthough it would be better suited to a smaller nozzle I printed this with a .8ml nozzle some top parts of the print are a little rough with small gaps . feel free to tweak the profile and publish if you get better results