Hi, so I've had my betta for almost two weeks now and recently when I checked on him I noticed his fins were slightly shredded. It doesn't look serious however, and he still acts healthy so I put it down to the decorations. Turns out my cave and fake coral were sharp in places I hadn't even realised! If only I'd noticed earlier... Anyway I took them out and now he's pretty much alone in his now bare 5 gallon tank heated filtered tank (it has gravel and a backdrop but nothing else). I don't really have the opportunity to go out and get more decorations this week so will he be okay in an empty tank for the next 5 days or so? Also is there any house-hold items I could put in there to ease the inevitable boredom?