Tunze / flow on 90g

harday · 02/28/2007, 09:07 AM

Hi, all - I could use some help here. I have a 90g with a lot of live rock. It's the "package" from TBS - 180lbs worth. My only flow currently is my return pump - an eheim 1260. With the head loss, I'm thinking it around 450 gph. I only have some soft corals that came with the package and don't plan to add anything else but fish. While everything on my rock "moves and sways" from the current flow, I think I need some more flow just to make sure I have good current bewteen all of the rocks. I was thinking of ordering one Tunze nanostream 6045. It says it puts out almost 1,200 gph, so I am concerned this will be too much. Your thoughts? I know this topic has been pounded, but I just don't know enough to make an informed decision.

DMK · 02/28/2007, 09:14 AM

well i have a 92 corner w/ a DSB and i have 4 TUNZE 6000's and 3 MJ 1200's. but i keep SPS. that nano would not be too much, in fact i would go w/ 1 6000 (1850gph), only because i hear alot of problems w/ a nano. also i would definately take out some LR. that's way too much for a 90. if u keep it all u will need alot more flow to keep movement through it all and to prevent algae. i thought i had alot of LR in a 92 at 125lbs. at first i had alittle over 150lb, and it was wayyy to much. i'd say 135lb would be PLENTY in a 90.

stevedola · 02/28/2007, 09:45 AM

I had a 75 w/ 2 - 6000s on multi and it was way too much flow for my 4ft tank (i had the no sand in the middle effect with constant sand storms). I ended up selling and buying 2 - 6045 nanos and absolutely love them. the flow and swivel option on them is great. Also they are 1/4 the size of a stream so they arent as pronounced in the tank. I havent had a single problem with my nanos. Some people (earlier generation nanos) had issues with the clips that broke (which has been fixed) and a reported few had issues with noise which Tunze has fixed by changing the machining on them.

Id would have to agree that 180lbs in a 90 is alot. Too much? well thats your decision. I dont see how you can get good flow or swimming room for fish with that amount of rock. I would suggest getting a bigger sump and putting some in there. THe benefits from LR are well known so keeping it in the system isnt bad but allowing detrius and other solids to build up is not advantageous towards keeping a healthy aquarium. It could be you have all this under control but Im one that wonders why so much rock? I have about ~75 LBS in my 75 with an additional ~30 in the fuge. I used to have it all in my display but re-aquascaped my tank and decided that there was too much. After I was done, I found that the flow was much better and overall tank health has increased. There were less dead spots and better lit areas to display prize corals where as before they almost looked lost amoungst all the rock.

back to the topic-- go with the nanos unless you plan on going barebottom with mainly high flow sps.

harday · 02/28/2007, 07:10 PM

Thanks for the input. This is the amount of rock recommended by Tampa Bay Salwater. Here is a (rough) pic. Does this really look like too much? I know TBS rock is more dense - maybe that's the difference?

stevedola · 02/28/2007, 07:59 PM

must be more dense

02/28/2007, 09:07 AM	#1
harday Registered Member Join Date: Feb 2004 Posts: 139	Tunze / flow on 90g Hi, all - I could use some help here. I have a 90g with a lot of live rock. It's the "package" from TBS - 180lbs worth. My only flow currently is my return pump - an eheim 1260. With the head loss, I'm thinking it around 450 gph. I only have some soft corals that came with the package and don't plan to add anything else but fish. While everything on my rock "moves and sways" from the current flow, I think I need some more flow just to make sure I have good current bewteen all of the rocks. I was thinking of ordering one Tunze nanostream 6045. It says it puts out almost 1,200 gph, so I am concerned this will be too much. Your thoughts? I know this topic has been pounded, but I just don't know enough to make an informed decision.

02/28/2007, 09:45 AM	#3
stevedola Master of my domain Join Date: Jun 2003 Location: Rhode Island Posts: 3,466	I had a 75 w/ 2 - 6000s on multi and it was way too much flow for my 4ft tank (i had the no sand in the middle effect with constant sand storms). I ended up selling and buying 2 - 6045 nanos and absolutely love them. the flow and swivel option on them is great. Also they are 1/4 the size of a stream so they arent as pronounced in the tank. I havent had a single problem with my nanos. Some people (earlier generation nanos) had issues with the clips that broke (which has been fixed) and a reported few had issues with noise which Tunze has fixed by changing the machining on them. Id would have to agree that 180lbs in a 90 is alot. Too much? well thats your decision. I dont see how you can get good flow or swimming room for fish with that amount of rock. I would suggest getting a bigger sump and putting some in there. THe benefits from LR are well known so keeping it in the system isnt bad but allowing detrius and other solids to build up is not advantageous towards keeping a healthy aquarium. It could be you have all this under control but Im one that wonders why so much rock? I have about ~75 LBS in my 75 with an additional ~30 in the fuge. I used to have it all in my display but re-aquascaped my tank and decided that there was too much. After I was done, I found that the flow was much better and overall tank health has increased. There were less dead spots and better lit areas to display prize corals where as before they almost looked lost amoungst all the rock. back to the topic-- go with the nanos unless you plan on going barebottom with mainly high flow sps. __________________ Cool Club Current Tank Info: coming soon...

02/28/2007, 07:59 PM	#5
stevedola Master of my domain Join Date: Jun 2003 Location: Rhode Island Posts: 3,466	must be more dense __________________ Cool Club Current Tank Info: coming soon...

02/28/2007, 09:14 AM	#2
DMK Registered Member Join Date: Feb 2003 Location: central NJ Posts: 2,494	well i have a 92 corner w/ a DSB and i have 4 TUNZE 6000's and 3 MJ 1200's. but i keep SPS. that nano would not be too much, in fact i would go w/ 1 6000 (1850gph), only because i hear alot of problems w/ a nano. also i would definately take out some LR. that's way too much for a 90. if u keep it all u will need alot more flow to keep movement through it all and to prevent algae. i thought i had alot of LR in a 92 at 125lbs. at first i had alittle over 150lb, and it was wayyy to much. i'd say 135lb would be PLENTY in a 90.

02/28/2007, 07:10 PM	#4
harday Registered Member Join Date: Feb 2004 Posts: 139	Thanks for the input. This is the amount of rock recommended by Tampa Bay Salwater. Here is a (rough) pic. Does this really look like too much? I know TBS rock is more dense - maybe that's the difference?