fishmanmike01 Posted February 7, 2010 Share Posted February 7, 2010 I am wanting to jump on this group buy for the vortechs and am wondering what size I would require. My tank is 36x18x26 .Do you think should throw in a 40 or would I only require a 20? I am eager to hear your opinions. Thanks Quote Link to comment Share on other sites More sharing options...
reefnjunkie Posted February 7, 2010 Share Posted February 7, 2010 If your budget allows, I would get the 40-it always seems that people upgrade their tanks and if you do you are set. I have a 75 gallon 4 feet long-I ordered 1 MP 20 and then realized I wanted/needed a second. I think even if I would have got a 40 at first, I would have wanted a second-that's me, I like the PH's at each end, it gives "everybody" great flow. Some of my SPS like high flow so I can place them at both ends and not just the end that has the "highest flow" With the 40 you can always turn it down, which in a 3 foot tank, I bet you'd run at 40% of max With my 20's I have, they are running at about 85% of max on the reef crest mode. Sweet units!! Quote Link to comment Share on other sites More sharing options...
pledosophy Posted February 8, 2010 Share Posted February 8, 2010 I am wanting to jump on this group buy for the vortechs and am wondering what size I would require. My tank is 36x18x26 .Do you think should throw in a 40 or would I only require a 20? I am eager to hear your opinions. Thanks I have the same tank and a MP20 is fine, but I do run a closed loop as well. JME Quote Link to comment Share on other sites More sharing options...
huskerduck Posted February 8, 2010 Share Posted February 8, 2010 The other thing is mp40s at 50% will probably make hardly a sound as compared to MP 20s cranked up. Im just guessing though. I would go bigger just to be safe for Upgrade Tankitis. MP 40s are 3" diameter and stick 2-1/4" outside and inside the tank if that matters, Byrd you have dimensions on the MP20s? Quote Link to comment Share on other sites More sharing options...
reefnjunkie Posted February 8, 2010 Share Posted February 8, 2010 I have the same tank and a MP20 is fine, but I do run a closed loop as well. JME I agree a single MP20 will work fine-If you will never upgrade to a larger tank than the 20 has you covered-The "never upgrade" part now thats funny The other thing is mp40s at 50% will probably make hardly a sound as compared to MP 20s cranked up. Im just guessing though. I would go bigger just to be safe for Upgrade Tankitis. MP 40s are 3" diameter and stick 2-1/4" outside and inside the tank if that matters, Byrd you have dimensions on the MP20s? The MP20 is about the same-When mine are running at 100%-I cant hear them at all-not saying it is 100% silent-I just cant hear it-these things whisper. The 6 inch fan in my light fixture makes more noise and its no louder than a computer fan Quote Link to comment Share on other sites More sharing options...
pledosophy Posted February 8, 2010 Share Posted February 8, 2010 If you do upgrade tanks, you can always order the MP20 to 40 up kit for $150. **Posted by the Guy who is getting a 125 and ordering the kit** Quote Link to comment Share on other sites More sharing options...
fishmanmike01 Posted February 9, 2010 Author Share Posted February 9, 2010 "Never Upgrade" .........That is funny(laugh)(nutty)(laugh) Thanks for all the info guys. If a deal goes through tomorrow I will be getting the 40. Quote Link to comment Share on other sites More sharing options...
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