I just wanted to share this with y’all. I was wanting to change the tank around for my 9 month old normal. I like switching things up for him every now and again. Today I took a 2 liter soda bottle, cut the neck out of it and cut a larger whole in the side. I put a cardboard tube in the neck and taped it up really good and left about 6” sticking out. After making sure there was no sharp edges I filled it sphagum moss and buried it in one corner of his tank. I checked on him tonight and he’s inside the bottle with his head in the tube lol. I’m gonna try to share a picture if I can it’s just at a difficult angle to see inside. It might not be something amazing for my to look at. I mean it just a big hump in the substrate with a hole leading to it lol but he seems to be liking it. Just thought I would share this , thanks.