1 mp40w provides much more flow than two mp10's. I'd go with the mp40 every time!
I just added flow to my tank yesterday. I did alot of research between a closed loop, mp40's and tunze 4106's. While the MP40 is nice due to not having a cord that was really the only plus I found with those over the tunze. With the MP40 you have zero directional control and I found that to be a major downfall. Not only does the tunze 4106 kick out 792 to 3434 GPH of flow (more then the MP40) it also allows you to change the direction of the flow, a mojor plus IMO. I purchased two tunze 4106's with the 7096 controller, My LFS only had one of the tunze on hand the other will be here in the morning. I have a 6ft 150 gal and with just the one tunze I could be just fine. I would go with a tunze but thats just me.
I feel like I might be asking a really stupid question, but here goes.
What the heck is a Tunze 4106? I could not find it on their site and a google search came up empty too. Hope its my day to be village idiot.:jester:
These are what he's talking about. I'm not familiar with the Tunze model number.
http://www.marinedepot.com/ps_searchItem.aspx?Category=Saltwater_Aquarium_Supplies___Powerheads_Adjustable_Flowrate_Pumps&SearchText=stream+2&vendorname=Tunze&vendorcode=TZ&IdCategory=FIPHAD&pageindex=0&parsed=1
My apologies, it was my day to be the village idiotI meant tunze 6105, sorry about that.
My tanks is a cube 24x24x20 and plan to have 2 MP10s on the back wall with the overflow in the middle. In my arrangement, one MP40 would not as efficient since I don't have a long tank. I feel one MP40 would leave dead spot on the other side of the overflow.
This is exactly what my thoughts were that led me to ask the question. Can one MP40 in a cube really be as good as two MP10s - one on each side of the back wall? Higher flow or not.
I imagine that whatever side of the tank does not have the MP40 will have a dead spot.
I tried an MP40 in my cube and I'd say no. I have the center overflow like someone mentioned earlier, there will be dead spots. needless to say, you will be paying for the wireless feature that you will never use. I ended up going with closed loop, but two mp 10 would be a good option imho. once the novelty of playing with a new expensive toy wears off, you will just be using it pretty much in a single mode only.
the most definitive way to answer your question is to buy an mp40 and see for your self. that's what I did and ended up reselling it. you can try to borrow it from someone (because you probably cannot sell it for what you paid for ).