Yesterday my dads corallife 18watt UV
sterilizer was leaking. I came home tonight and water was all under my 28gallon and 125gal. Being that he didn't fix it, I broke it down and looked at it. To make a long story short, after putting it back together I started to clean my pops tank because he doesnt. I was using one of those magnets that stick to the tank and must have hit the thermometer and it broke. I scooped what i saw of the lil balls from the thermometer and then vacummed. Then did a 18 gallon water change. I also added ammonia and carbon to the caninster filter. Is there anything else I can do, is there no hope for his tank.