Ive got a question that i need answered asap. I just did a water change on my 125 ive had an explosion of coralline algae for the last few months. To make a long story longer i did the water change and began to scrape the glass and realize that the razor blade had about 1/4 inch of it broken off into the tank some where .I tried looking for it but no luck, Is this gonna cause a problem in my tank or am i over reacting? My tank contains fish and coral.