Hog Head Posted August 15, 2010 Share Posted August 15, 2010 What are the advantages of 2 MP40's over just 1 other than making waves (which I don't want to do)? It is looking like I will probably use the Reef Crest Mode. Quote Link to comment Share on other sites More sharing options...
jgf86123 Posted August 15, 2010 Share Posted August 15, 2010 Better coverage, better turnover, 2 is always better than 1 :P Quote Link to comment Share on other sites More sharing options...
Saltfinsax Posted August 15, 2010 Share Posted August 15, 2010 I don't have any "yet" but I would think if you had them pointed at each other from the ends of the tank, that it would give you some good chaotic flow. Quote Link to comment Share on other sites More sharing options...
ToxicPoison Posted August 15, 2010 Share Posted August 15, 2010 It really depends on the size of your tank. I have a 100gallon open top with the older MP40W. I have the pump set at 75% (approximately) of full power. When I had it on 100% power, the sandbed was completely destroyed and I had water splashing over the top due to the strength of the waves. Unless you have a very long tank, or it's oddly shaped, I really don't think theres much to gain from 2 MP40's. Quote Link to comment Share on other sites More sharing options...
USCG CWO Posted August 15, 2010 Share Posted August 15, 2010 It is looking like I will probably use the Reef Crest Mode. My preference is the "Nutrient Export Mode." Push the mode button until light turns purple, and then hit set button once. I run mine about half power, on a standard 90 gallon tank. Wet side will rev up and down for a while and you'll be surprised at the crap that lifts up off the bottom of your tank and my SPS seems to love it. Should really give that mode a shot. Shane Quote Link to comment Share on other sites More sharing options...
rgrcrain Posted August 15, 2010 Share Posted August 15, 2010 I'm getting 2 because my tank is 6 foot long and it just seems weird to me to have one side of the tank with all the current. Quote Link to comment Share on other sites More sharing options...
tanktop74 Posted August 15, 2010 Share Posted August 15, 2010 i run 2 on my 150, its a 5ft long tank. And I run them both at 100% and still have a few dead spots because of my rock work. If you tank is 4ft or longer I would go with 2 because the max flow only goes about 4ft. Quote Link to comment Share on other sites More sharing options...
Hog Head Posted August 15, 2010 Author Share Posted August 15, 2010 My preference is the "Nutrient Export Mode." Push the mode button until light turns purple, and then hit set button once. I run mine about half power, on a standard 90 gallon tank. Wet side will rev up and down for a while and you'll be surprised at the crap that lifts up off the bottom of your tank and my SPS seems to love it. Should really give that mode a shot. Shane Does Nutrient Export work with one pump? Quote Link to comment Share on other sites More sharing options...
Hog Head Posted August 15, 2010 Author Share Posted August 15, 2010 The tank is 6' long 18" wide and about 15" high off of the sand bed and I was worried about having just one pump at the right end but I also have the return and a K2/4 at the left end. Quote Link to comment Share on other sites More sharing options...
jgf86123 Posted August 16, 2010 Share Posted August 16, 2010 Hog, get 2, one on either end, and then get rid of the of the other powerhead you have in the tank, run just the return an 2 MP40's. Quote Link to comment Share on other sites More sharing options...
USCG CWO Posted August 16, 2010 Share Posted August 16, 2010 Does Nutrient Export work with one pump? It does in my tank but mine is only 48" long. Shane Quote Link to comment Share on other sites More sharing options...
rgrcrain Posted August 16, 2010 Share Posted August 16, 2010 I think the biggest advantage is the fact that we are waiting for one more mp40 to finish the group buy.lol Quote Link to comment Share on other sites More sharing options...
Hog Head Posted August 16, 2010 Author Share Posted August 16, 2010 I think the biggest advantage is the fact that we are waiting for one more mp40 to finish the group buy.lol I figured as much.lol I guess I am in for one more.(rock2) It will go better with the 180-210 when I upgrade in about a year or so. At least I will have all the equipment I need/want. The wife is going to kill me.(wife) Quote Link to comment Share on other sites More sharing options...
rgrcrain Posted August 16, 2010 Share Posted August 16, 2010 You are the man. RYAN, where you at, lets do this!!!! Quote Link to comment Share on other sites More sharing options...
Hog Head Posted August 16, 2010 Author Share Posted August 16, 2010 Thanks. But for how long.(wife) Quote Link to comment Share on other sites More sharing options...
Hog Head Posted August 16, 2010 Author Share Posted August 16, 2010 The second one is payed for now. Lets get the ball rolling. Quote Link to comment Share on other sites More sharing options...
Hog Head Posted September 3, 2010 Author Share Posted September 3, 2010 These pumps are awesome. I have them working together in Nutrient Transport Mode and there are no dead spots anymore. The Fish/coral are adjusting to the higher flow rate and at 40-50% level don't seem to mind it. After a couple of days I'll try raising it up a notch again. I sure am glad you all helped talk me into getting two of them. Quote Link to comment Share on other sites More sharing options...
drock59 Posted September 6, 2010 Share Posted September 6, 2010 You said you didnt want to make waves with two. Im not a betting man, but I think maybe, just maybe, you turned on the blue mode briefly just for giggles, didnt you? (clap) Quote Link to comment Share on other sites More sharing options...
Hog Head Posted September 6, 2010 Author Share Posted September 6, 2010 You said you didnt want to make waves with two. Im not a betting man' date=' but I think maybe, just maybe, you turned on the blue mode briefly just for giggles, didnt you? (clap)[/quote'] Well I did think about it, but I actually went straight for NTM. I have it set so the wave is minimal but there is 10 times the movement then there was before. So far I can't find any dead spots. The Koralia's were good, but nothing like this. My acro has grown too high to have any real waves. Water would be sloshing out and parts of the acro would be out of the water. The only thing that doesn't seem too crazy about the flow is my frog spawn. Quote Link to comment Share on other sites More sharing options...
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