[How to get rid of purple cloves]

I was told you could use fluke tabs to get rid purple cloves but I can't find them anywhere, does anyone have some for sale or any suggestions on how to get rid of the cloves.

 

 

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[Tank leak]

I've had my reef tank for two years and I finally have it the way I want it. A few days ago I notice that my tank has a slow leak on the bottom left side, what would be the best to repair this leak I really don't have the finances to invest in a 75g tank. Any suggestions would help?

 

 

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