HOB-500 vs 600IF: Which Aquarium Filter Fits Your Tank?
By AllPetSolutions | Published: 2026-11-04
Category: Vergleiche
Compare the AllPondsolutions HOB-500 hang-on filter and 600IF internal filter on space, flow, and tank size to decide which suits your aquarium.
Quick answer
Choose the AllPondsolutions HOB-500 if you want to keep all the space inside your tank and need a 500 L/H hang-on filter for aquariums up to 250 litres. Choose the 600IF if you prefer a submersible unit that also provides surface agitation via a spray bar, and your tank is no larger than 110 litres.
Space: outside the glass vs inside the tank
The HOB-500 hangs on the rim and keeps the entire tank interior free for fish, plants, and hardscape. That matters in a heavily planted or aquascaped setup where every litre of swimming space counts. The trade-off is that you need clear space behind or beside the tank for the housing, plus a power outlet nearby.
The 600IF sits inside the aquarium, so it takes up some water volume. In a smaller tank that footprint is more noticeable, but it also means no external plumbing or rim clearance is needed. If your tank sits flush against a wall or inside a tight cabinet, the internal option avoids the rear-clearance problem.
Flow and tank size: 500 L/H vs 600 L/H
The HOB-500 is rated at 500 L/H and is intended for fresh or salt water aquariums up to 250 litres. Its flow can be turned down or up to match the tank it is working on, which helps if you keep slower-moving fish or a smaller volume than the maximum rating.
The 600IF is rated at 600 L/H and is intended for tanks up to 110 litres. The higher flow rate in a smaller maximum volume means it moves water more aggressively relative to tank size. That can suit fish that like current, but it may be too much for delicate long-finned species in a small tank unless you can diffuse the output.
Aeration and return options
The 600IF is supplied with two return options, and you choose one or the other. One is an adjustable spray bar that breaks the surface and lifts oxygen levels; the other is a different return style. The catalog describes the unit as covering both filtration and oxygen from one power lead, in principle removing the need for a separate air pump.
The HOB-500 does not list a spray bar or a second return option in the supplied facts. If surface agitation and a visible waterfall return are priorities for you, the 600IF gives you a dedicated aeration-focused choice that the HOB-500 does not explicitly offer.
Key trade-offs to weigh
- Tank space vs external clearance: The HOB-500 frees all interior space but needs room behind or beside the tank for the hanging housing. The 600IF uses interior space but needs no external clearance. Measure behind your tank before choosing the HOB-500.
- Maximum tank size: The HOB-500 is rated up to 250 litres; the 600IF up to 110 litres. If your tank is between 110 and 250 litres, the 600IF is outside its stated range. Check your tank volume against these limits before buying.
- Flow adjustment and aeration: The HOB-500 allows flow to be turned up or down. The 600IF offers a choice of two returns, one being an adjustable spray bar for surface breaking. Neither fact guarantees a specific oxygen level; they describe the available controls. If you want a dedicated spray-bar return, the 600IF is the one that lists it.
Product facts at a glance
- AllPondsolutions 500L/H Hang On Aquarium External Filter HOB-500: Hangs on the tank rim and delivers 500 L/H for fresh or salt water aquariums up to 250 litres. Keeps the entire tank interior free and suits larger setups where internal space is at a premium.
AllPondsolutions 500L/H Hang On Aquarium External Filter HOB-500 - AllPondSolutions 600L/H Aquarium Internal Filter 600IF: Submersible 600 L/H internal filter rated for fresh or salt water tanks up to 110 litres, supplied with two return options including an adjustable spray bar. Gives you a single unit for filtration and surface agitation, but limits you to smaller tanks.
AllPondSolutions 600L/H Aquarium Internal Filter 600IF
Which filter fits your setup?
Best for
- Tanks up to 250 litres where you want to keep all interior space for fish and plants
- Aquarists who prefer equipment outside the glass and can allow rear clearance
Not for
- Tanks with no space behind or beside them for a hanging housing
- Very small tanks where even a 500 L/H flow may be too strong unless turned down
