“Sump Skimmer”

[Gtinnel]

I would go by the recommended tank size on bulk reef supply website. I have little to no experience with hob skimmers but I agree that Reef Octopus is a good option when it comes to skimmers generally speaking.

 

[Jekyl]

A skimmer doesn't take the place of a HoB filter though. I use both as they have different purposes

 

[StPatrick89]

Reef Octopus Classic 90 Hang-on-Back Protein Skimmer

Unique skimmer design with cylindrical body which uses the siphon to feed water to the skimmer. This reduces the load on the pump while increasing the air intake. Rated for aquariums up to 100 gallons Powered by Aquatrance 1000 Pinwheel Pump Design reduces turbulence Capable of surface skimming...

www.bulkreefsupply.com

This is what I have and would work for your tank too. BRS is out of stock though

Thanks for your wisdom as always

 

[mdb_talon]

Whether to oversize it really depends on your stocking and feeding level. I am a huge believer in very heavy feeding and have found i always need to significantly oversize my skimmer. There is no magic to the skimmer size ratings other than basing it off estimated need for a given tank size.

 

[Tft12]

For sumpless systems I’m a big fan of Tunze 9012. I’ve used them a number of times. It goes in the display but it’s pretty small is good about not releasing many micro bubbles.