From time to time my silver dollars knock off the strainer on my filter. Once the strainer is gone as my smaller fish swim past the filter it sucks them into the canister. Rather than gluing the strainer on to the intake tube I was thinking of drilling a small hole into the strainer and intake tube and inserting a piece of metal so the strainer wouldn't come off, but that I could remove the metal if I needed to clean, or get into the intake tube. Any suggestions would be much appreciated. If I used something metal I'd need something that wouldn't rust (I was thinking maybe a paperclip would work). Or should I just glue?