I hope someone can help me with this. I want to make my own aquarium decorations, particularly some places for loaches and other skittish fish to hide. I went to the local pet store and was amazed at how expensive they are. I’ve done some research online and I’ve read you can use PVC with either silicon or hot glue to affix things such as rocks. I do not have any PVC but I do have a plethora of empty flavored water bottles that I would normally recycle. I will attach a picture so you can see. Would it be safe to use these in the aforementioned idea? If so what would be the best method to make sure they are cleaned thoroughly? If these will work all I would need would be the silicon and/or hot glue sticks. Any and all help would be appreciated. Oh before I forget the tank is a 50 gallon bow front with heater and external filter. I have also added a strip air stone for both aesthetics and aeration.
http://home.grandecom.net/~mwellsasu
http://home.grandecom.net/~mwellsasu