If it's a HOB, it's a Hagen Aqua Clear!
The only HOB I will ever use
I use 200's, 300's & 500's on various tanks, my AC110's are modified with bio-wheels... See my thread on installing this mod.
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Why I prefer the AC110...
Reliable, I've had the same AC's for years now, changed a couple impellors due to FOD... Never had a problem related directly to the AC.
Always restarts automatically after powering off.
Quiet, virtually no audible pump noise.
Some outflow splash/tinkle depending on water level*.
Versatile/media volume, you can use any media you can fit in the spacious media chamber, mech, bio, chem... Bag it, cram it, float it... Anything, anyway and lots of it.
Powerful/higher GPH, moves more water than Marineland HOB's, less drop in flow due to media impediment.
Maintenance, very easy to maintain.
Cost... Initial purchase and annual outlay for medias, generally cost less than Marineland, replacement stock medias less costly too.
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*But I like that, some people pay $100's for fancy schmancy indoor water falls to get that effect
