6025 vs 6045 in a 54 corner

[Neurotech]

Hey all. I just ordered 6045's for my new 54 corner tank. I wonder if any other 54 people are using these and where they placed them. Tunze people - I also have concerns about threads I read about the 6045. Any help, opinions appreciated.

 

[rvitko]

I have a 6045 and an early Beta model of a 6055 which only does about the same flow of a 6045 in my 58. The flow is the minimum I feel is acceptable. With 2 6045's you will have enough flow for most corals but not SPS. People seem to overlook the nano portion of the name and use these pumps in much bigger aquaria than they were intended for and that is why they are unhappy. I would recommend the 6045 for nothing bigger than a 75 at most and a low flow one at that. The flow pattern is 3ft by 18". The nano Streams were really intended for tanks below 55gals, though the 6055 could be used on slightly larger aquaria. Bigger aquaria or SPS tanks should use standard Stream pumps.

 

[Neurotech]

I'm sorry, but my post WAS about a 54, and a corner at that, which has less horizontal distance. Is your answer about it not being enough flow reklevant to me do you think? I thought that I would do well with sps and 2 6045's. Actually, I thought two 6025's would do.

 

[rvitko]

I think you will likely want more flow for SPS. I am familiar with that aquarium and it could work if your return flow was strong, say 600+ gph.

 

[Neurotech]

Yes, I am planning on an eheim 1260, which is rated at 635 gph before it works it sway up to the tank. I think that will altogether be a lot of flow, considering that the two tunze 6045's wil be at opposite ends of the tank, each only about 16 inches from the center. Pointed at the center more or less, I would think that would make for a lot of motion. With the tunze supplying, conservatively, 900 gph each, and the return about 450, thats more than 41 times the volume per hour. Sounds like you have been getting a lot of heat (no pun intended) from folks who are expecting too much from these pumps. I think my expectations are reasonable. I hope. Any 54 corner people out there with experience?

 

[Neurotech]

I was planning on putting a mxijet behind the rocks too.

 

[hammerswinger]

i have a 36 corner with a 6025 and by itself it is just right. in a 54 i would imagine the 6045 would be perfect

 

[mattboy]

I have a 50 gallon corner tank, it's about 36" corner to corner, I'm using 2 6025s plus a 500gph return pump. My tank is primarily SPS and the flow is just about right. Still wondering how different the 6045s would be. The ideal solution, unfortunately, would be two 6055s and a controller, but that's big bucks for flow in a small tank.

If money is an issue (it usually is...) I would suggest trying the 6025s first. I'm sure you could sell them for close to what you paid if you realized that you want more flow. I wish I could describe the flow in my tank better, but I'll say that there's pretty good water movement in the entire tank, and only a couple of spots where I can't put corals due to the fast unidirectional flow. There are some spots in the tank where the flow could be stronger for the corals, but I also have 4 clams and I need some calm areas for those. Of course your rock work really affects how the flow travels, so each tank is different. I bet there's not much difference between the 6045s and 6025s in terms of really noticable flow, but maybe I'll take that back when/if I try some 6045s in there.

 

[Neurotech]

Thanks guys

 

[TitanVA]

I have a 54 corner with 2 6025s and a MJ 1200. I have another 6025 on order that will replace the MJ. I have a mostly LPS with a couple acro colonies and a few other SPS. I think when I add the 3rd 6025 I will be good to go. The flow now is nice but I want a little more. I have the 6025s in the back corner pointing towards the front corners but I have been trying to figure out new placement.

TitanVA

 

[rvitko]

The main thing to keep in mind is that with these wide flow pumps the pressure is not very high. Where I think you might be dissappointed is that the roll back of current to sweep detritus back will be minimal. The 6045 really produces about 1100 gph (4200l/hr), the 6025 actually is producing over 700 gph, (2800l/hr). To put in perspective how much nozzle width affects the force of flow, a 7400/2 turbelle has roughly the same flow as a 6045. The 6045 has a 1.5" outlet and the 7400/2 is 1". The flow of a 7400/2 flares out much more gradually to a foot in diameter and reaches 6ft. The 6045 on the other hand has a fast flare out to about 18" and only reaches about 3ft. Most people can visualize this by thinking of the effect larger water hoses would have on the same faucet. What would shoot out under pressure from a 1/4" hose would just bubble out of a 1" hose. To get more pressure the flow has to be much higher. For SPS sometimes you need a much higher flow, it depends on what you keep. If this was my tank I would use a single 6000. Fewer cords, the flow while volumetrically similar comes from a single source and has a bit more pressure and the pump is controllable and the total price is really not too much higher than you were planning to spend anyway and the energy consumption is pretty much equal.

 

[Neurotech]

Thanks Roger. Here I am almost two years later. I went with two 6045's at the time, and I thought the flow was decent. My tank didn't really succeed for other reasons and I am starting over. The 6045 had popped open in the tank, so I took it out and cleaned it w Vinegar. Looks brand new, but teh two halves won't stay together. I can get it to match up all around evenly with pressure, but it pops open. Any ideas?
ps - I might just put these 45's in my other corner and trey the 6000 like you said. Any idea where to position a single 6000 in a corner?

 

[Hookup]

[sponsor]

 

[rvitko]

I would place the pump in the backcorner and aim it to the front center or place it centered on a side and aim it to the diagonal corner. I can send a new front cover if you need one, just PM me.

 

[monotreme_man]

que 6000?

que 6000?

roger,

above you referenced the 6000, which i can't find anywhere.
but what you said makes me concerned about my choice for my tank.
i have a flat hex 200gal tank, 7x2x2ft. i can't afford full circulation
right now, but i need something to start with. so i had thought to get
2 6065s and get some modest gyre going and add more later.
but your comments make me think that won't work.

would one 6105 (and later adding a second one) work?
what would you recommend?

 

[rvitko]

The 6000 was discontinued a couple years ago. This is an old thread. The 6105 running on 15V is the current equivalent. I would get the 6105's, 2 of them and the controller would be the best solution.