Anthony Posted October 6, 2005 Report Share Posted October 6, 2005 hi is it nessicary to run closed loops? and if i was to do it what size pumps would i need? what are the down falls of having closed loops and what are the good things about it? cheers Quote Link to comment Share on other sites More sharing options...
Ira Posted October 6, 2005 Report Share Posted October 6, 2005 is it nessicary to run closed loops? No. And if i was to do it what size pumps would i need? Depends on how much flow you want. what are the down falls of having closed loops and what are the good things about it? Downfalls extra expense and holes drilled in the tank. Good things, gets powerheads out of the tank. That's all they're really for is to just get pumps/powerheads out of the tank. Quote Link to comment Share on other sites More sharing options...
Anthony Posted October 6, 2005 Author Report Share Posted October 6, 2005 thanks ira what if i was looking at a medium flow in a 4 foot tank what would i need? and how many? Quote Link to comment Share on other sites More sharing options...
chimera Posted October 6, 2005 Report Share Posted October 6, 2005 medium flow in a 4 foot tank what would i need? and how many? keep it simple. a single eheim 1060 would provide sufficient medium flow in a closed loop system for a 4 foot tank. how you plumb it is up to you, but bear in mind the biggest benefit on a system like this is to have water movement UNDER the rock structure (as its easy to create water movement up top). setup a reef rack with some form of spray bar under it. i would highly recommend you do a closed loop like pies has done. check his thread for information on this. for a 4 foot tank this would be perfect. two (or three) holes evenly spread in the bottom, water goes out one, into the pump then back up into a spray bar (or 'Y'd into two) Quote Link to comment Share on other sites More sharing options...
Anthony Posted October 6, 2005 Author Report Share Posted October 6, 2005 thanks chimera ill have a look at his thread now Quote Link to comment Share on other sites More sharing options...
suphew Posted October 6, 2005 Report Share Posted October 6, 2005 The other benfit is it stops things getting sucked in. Like what can happen with power heads. Nothing worse than putting an anemome in your tank and having it chopped up by a power head. Quote Link to comment Share on other sites More sharing options...
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