Zoo Med Floating Turtle Log -- Turtle keeps eating it
I've had this log for a couple of years and I really like it a lot, but Franklin started eating it last year and now Speck has taken up the hobby also, either eating or scratching at it. It's weird, because it's only at night, but it's getting louder and keeps me awake for a while. There's now a big chunk out of it, I mean probably a 3"x4" is gone and no where to be found. Also I noticed a couple of months ago that there's this strange sort of film on the water surface, the whole surface glows like a rainbow from a certain angle, and it does not get sucked in by my filter or my siphon. Last week I took everything out and dumped the tank in the bathtub and cleaned it thoroughly. It was so clean and the water so clear, but guess what? The next day that ridiculous junk is on the surface again. 
I like the log, a lot. I don't really want to get rid of it, but I may have to if it's the cause of the rainbow film mess and if he'll stop eating it. So that's the question. . . If I get rid of it and get a new one, will he stop eating the basking platform or will he chew on the new one? And will the rainbow film go away? If I get a new one, which one do you reccommed? I have a 40 galllon breeder but it's only filled a little above halfway because the filter I have is the Tetra Decorative Fountain one, so I can't have an over-the-tank. I was looking at the Penn-Plax Turtle Pier. It automatically adjusts to the water level, which I love, and it has much better reviews than the Zoo-Med floating one that comes in, maybe four sizes? The Penn-Plax one comes in two sizes, 9.5"x11.5" triangle and an 11"x16" rectangle. Speck is exactly 3" right now, but I don't want to buy another basking platform for at least a few years, because I don't want to spend too much money. I measured 16" to the glass of my tank and it looks like it would be a monster, although it does have room underneath.
So, any thoughts would be appreciated. Thanks!
I like the log, a lot. I don't really want to get rid of it, but I may have to if it's the cause of the rainbow film mess and if he'll stop eating it. So that's the question. . . If I get rid of it and get a new one, will he stop eating the basking platform or will he chew on the new one? And will the rainbow film go away? If I get a new one, which one do you reccommed? I have a 40 galllon breeder but it's only filled a little above halfway because the filter I have is the Tetra Decorative Fountain one, so I can't have an over-the-tank. I was looking at the Penn-Plax Turtle Pier. It automatically adjusts to the water level, which I love, and it has much better reviews than the Zoo-Med floating one that comes in, maybe four sizes? The Penn-Plax one comes in two sizes, 9.5"x11.5" triangle and an 11"x16" rectangle. Speck is exactly 3" right now, but I don't want to buy another basking platform for at least a few years, because I don't want to spend too much money. I measured 16" to the glass of my tank and it looks like it would be a monster, although it does have room underneath.
So, any thoughts would be appreciated. Thanks!