So you have had this tank up and running for 5 years now? That's a feat in it's own sense. Tanks come and go and get changed more often than a bag ladies undies. Well more often than a bag lady who is concerned with monthly hygiene. lol A 5 year old nano is quite an achievement. My 29 biocube has been running for 20 months now and going strong. Hopefully I can keep it going.

It's funny how in an "emergency" situation we can miss the smallest things that have the potential to make a large impact. Reminds me of when I found the filter sponge in the back compartment of my cube after it had been running for about 8 months. LOL Needless to say it was quite clogged and the tank inhabitants were thrilled to have it finally realized and cleaned.