Blown fuse = Dead fish

[sphelps]

Very sad stuff, sorry for your losses. I recently had a similar experience so I feel your pain, it's very hard to replace certain livestock especially if they were well adapted.

As Steve said it's always best to have your system on at least two independent breakers. I run noncritical loads like lighting, skimmer and other filters on one breaker with GFI and critical loads like the return and heater on another breaker without GFI. Also avoid using power bars as they are often prone to failure.