Advice for my new 140g

Jballen

New member
I have settled on most of the equipment form my new 140 gallon tank, but circulation is still a question. I will be using either an Iwaki MD 70 or Blueline 70 for main return pump and was trying to get a good grasp on the Tunze Streams. What would be a good set up in my 60"x18"x30" tank? One pump on each end? Which pump? Thanks.
 
Oe pump on each end and I would use the 6000's unless you will do all SPS or largely SPS then perhaps the 6100's. I would also give you a tip on your returns- GRI pumps use less electricity and are very nice, quieter than your other two options.
 
I have a 36"L X 18" H x 24" D aquarium, what tunze water circulation component do you consider? I plan to keep SPS corals. Also, I would prefer for the pumps not to be to visible. I was thinking about the turbelle classic, but I do not know if they are as good as the turbelle stream. Please give me some advice. Thanks.
 
I ran a 36 by 24 by 21 reef for sometime with 2 2002 and had good success. I will say this Turbelle Classic pumps are great but have numerous drawbacks that have to be seriously considered.

They are high maintenance- these are old fashioned motors with bearings and parts that wear and under ideal conditions last 3 years- unless you have backups for when you have to send them in for service or are yourself mechanically inclined (a rule of thumb is if you are capable of basic auto care like oil/ air filter and spark plug changes you can likely handle it) If I do it it is usually about $25 in parts and $15 in labor.

They primarily circulate the top end of the aquarium and are not ideal for deep aquariums. The pump itself is 1" below the water line and cannot be submerged deeper without damaging the pump. In aquariums deeper than 24" I find they are not sufficient flow in the deeper reaches.

They are expensive to control. Control of the classic turbelles requires a multicontroller outfitted with special sockets which vary the power to the pump- a control kit is about $260.

They make noise from a cooling fan- they sound like a fairly noisy PC cooling fan- if I had to quantify it it would be 30db.

With that said the Classics are probably the only pump in the world that will absolutely last forever- they are almost infinetly rebuildable and have some great features, the flow can be dropped almost to 0gph, they are electrically waterproof if they fall in but of course the mechanical components would be ruined (bearings and seals and spacers). They also are nearly invisible and add no heat. Myself, I am sick of rebuilding them, I own 12 and I see at least 1 per week from somewhere in the US/Canada or Mexico needing to be rebuilt, it takes about 15 minutes but can be a pain in the arse. I would buy a 7400/2 or 2 7200/2 and a controller and just accept that you will have very beautiful German made pumps to show off to people- frankly I wouldn't mind having an engine in my living room as long as it went to a Mercedes Benz.
 
Thanks RVITKO for the info... I just saw the website and the 7400/7200 are powerheads, and not the stream? You mention the classics lasting forever (of course doing maintenance), but do I expect that for the 7400/7200? Also, since my tank is 28" deep (really is 26" because of the sand bed) will it circulate the water in the bottom? If I get the 7200 will I be missing out on more circulation not using the 7400? Let me know. Thanks again.
 
Your tank is on the small end for Streams- a 6000 would be acceptable. The 7400/2 would be a one pump solution as would the 6000. In general it is better to have two so the flow pattern is more random so the 2 7200/2 would be the best in my opinion or you could use a 6000 and a 7200/2 and have the best of both, they are both compatible with the multicontroller. Depending on position they will move the whole tank. I generally expect the submerse pumps to last 10 years with good care. The classics have so many parts that you can replace the individual parts thats why they last so long.
 
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