Originally Posted by sweetness8t5
Would it work for a HOB
And what size/power/etc do I need for a 55g?
Nope, won't work with a HOB
. They have a 5/8" input and output connection, and are made to be inline with the canister tubing.
The ETH 200 is 1/2", and the ETH 201 and ETH 300 are 5/8".