I have three power packs that are essentiallly big batteries. I've used them a few times. Each has to plugs. I've run air stones and also briefly run canister filters, too. I"ve never had to use them for long periods of time, though.
I have three power packs that are essentiallly big batteries. I've used them a few times. Each has to plugs. I've run air stones and also briefly run canister filters, too. I"ve never had to use them for long periods of time, though.