I have slowly been replacing all of my TopFin Filters with Aquaclears. The last tank needing done is my 29 Gallon and I was planning on waiting til it was fully stocked and settled. Today I woke up to a rattling noise and a burning smell and it was from my topfin 30 filter. t was full of water but it wasn't pulling. So I ripped it off and broke into the casing. It is fried. It looks like the impellar came lose and burned out the engine. I have rush ordered a Aquaclear 110 for the tank but for now how can I keep the water clear, I only have an old TopFin 20 to hand but no cartridges for it.