
for my 20 gallon tank, since my 55 does not have room for decor I thought I would pretty up the 20 a little. This ornament though, unfrotunately, is hollow. However, it does have several holes at the top, and I was thinking of winding a bubble wall through it. Would that make it ok not to fill? Especially if I use the bubble wall and make sure that the water does not become stagnant by cleaning the ornament with each water change, something I will have to do anyway since this tank has an algae issue?
Just want to be safe and I have never really used ornaments in my tanks before. Thanks!