I did a water change 2 days ago on the 32 gal. Everything was normal. Yesterday, normal. This morning, normal. This evening.... Heater broken in 2. Literally half the glass on the substrate and the other half still attached. Wires were exposed. I unplugged everything. The water was FREEZING! I cleaned it all up and put in a new heater. Not really new but its what I had from a previous tank. OMG. Now we wait to see what plants and inhabitants die from the sudden temperature changes.
On a side note. I picked up some pool filter sand for the 55 gallon aquarium. Activ-Flora substrate is also on order for the 55 as well