Wanted to share this crazy heater I pulled today from a 80 gallon holding tray that had been going for 2 years. This is a Titanium Finnex 300watt that had been on an Ink Bird for 2 years and never once was it cleaned. It was laying horizontally in a bare bottom tray were over time the GSP grew over it. Both the heater and GSP were fine at the time of shutdown.