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#1
10-30-2007, 03:41 AM
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Submersable vs External which way you go??
OK, I am wondering the pro's/cons on Submersable and external pumps. I know External needs a bulkhead fitting on sump, but why would one choose one over another? Do submersables have shorter lifespan? I am thinking a Mag 18 for my Sump, but then, I could go a little more fro flow. And it isnt that much more to jump to external for as far as the pump costs.
Just wondering why you went with the pump you did?? 
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#2
10-30-2007, 04:23 AM
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in or ex
I had a chance to look at a Sequence Reeflo Dart working before I set up my new tank and based on how quiet it is, the amount of water it moves, the amount of maintenance involved, the low power consumption, and the lack of heat transfer I chose this one. Until now I used submersibles and never had any problems so I'm starting to believe that if you don't have a huge tank it's just a matter of personal preference.
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300 Gal 6x3x28 high Starphire peninsula w/external herbie/bean animal hybrid +150 Gal custom sump with 30gal fuge section, (both built by Concept Aquariums Calgary), 3x Ecotech Radion xr30w g2's(soon to be G3 Pros), Jebao DCT 12000 return pump, 2x Jebao RW 20 powerheads, Tunze Ato, Vertex ro/di, Reef Octopus Ext 200 skimmer run internally.
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#3
10-30-2007, 05:37 AM
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One of the big reasons I think people go for the externals is heat issues. Personally, I went for a Hydor Seltz L45. Low power, good flow, good price. I'm running it submersible because I seem to have the opposite problem... my tanks in the basement and I struggle to keep it close to 80, most days it's further down in the high 70's so I'm after all the heat transfer I can get!
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#6
10-31-2007, 03:15 AM
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I would recommend going external if you have the space. I think you can get a more efficient pump. It also gives you more room in your sump for other things. Even with a 90 gal sump you always with you had more room available.
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300 gal starphire custom built in pentagon reef (+90 gal sump on Blue Line 100 HD return pump, 210lb LR, Euro-Reef RC250 skimmer, 2x400W MH, 2x28W compacts, 2xTurbelle classic 4002 pumps & Turbelle Stream 6100 on 7095 Multicontroller, running ZEOvit) Livestock Fish: damsels; sailfin, yellow, regal & naso tangs; ocellaris & tomato clowns; lyretail anthias; foxface lo; flame angelfish corals: a few
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#7
10-31-2007, 02:56 PM
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The main reasons for external are HEAT, HEAT and HEAT.
Oh yes and then there is Quieter and more Flow. Tom R
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#8
10-31-2007, 07:59 PM
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Quote:
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Linear Mode
