So I was thinking about a cheaper alternative to buying an all acrylic tank and an easier one than fabrication since i don't have the tools. My idea is to take a standard glass cheapo and maybe line the sides and bottom with 1/4" acrylic, stuck on with silicone aquarium sealant. What I'm worried about is dead water space between the acrylic and glass. Would this be a problem? If not does this sound like a decent idea or are there other problems?