Tanks without sump space don't have to give up DC-controllable skimming - the K3 HOB line brings the same DCAIR pump platform to a hang-on-back body. Four sizes cover tanks up to 250 gallons.
Why HOB Doesn't Mean Compromise
Mounting a skimmer on the back of the tank used to mean settling for a fixed-speed pump, but the K3 HOB line carries the same 10-level adjustable DCAIR pumps found in IceCap's in-sump models, so sump-free tanks don't lose out on control.
Choosing a Size
- K3 100 HOB - mounts on the back of the tank for aquarists without sump space, powered by the DCAIR 1.0 pinwheel pump, rated up to 140 gallons.
- K3 150 HOB - steps up to the DCAIR 2.5 pump for tanks needing more capacity than the 100 HOB covers, still mounted externally.
- K3 200 HOB - uses a cylindrical main body that cuts down internal turbulence for better foam fractionation compared to the smaller models.
- K3 250 HOB - the largest hang-on-back model in the K3 line, built around the DCAIR 2.5 pump and a cylindrical body, rated up to 250 gallons.
Setup Tips
- Confirm rear clearance behind your tank before ordering, since HOB units need room to mount and access for cup emptying.
- Break in gradually, expecting some microbubble overflow during the first 1-2 weeks.
- Start at a moderate power level and adjust the DCAIR pump based on observed foam production.
The IceCap K3 HOB line is available at Marine Concept Supply across all sizes - order online or pick up at our shop in Wheeling, IL. Shop K3 100 HOB, 150 HOB, 200 HOB, or 250 HOB, and browse more protein skimmers.
