JBJ 28 Gallon Nano Owners Club

I think with the wave maker having both pumps on is that the level in the rear will be lower than normal. However, if you have both pumps and set your water level to normal height in rear chambers then you wont see much flow difference.
 
Anyone try the Sapphire or Euro-Reef skimmers for these yet? I'm leaning more toward the Sapphire as it sits in the middle chamber and not hang on the back.
 
<a href=showthread.php?s=&postid=15444402#post15444402 target=_blank>Originally posted</a> by jackal4eva
I have the ATO and the wavetimer set to always on - I've never experienced the overflow rate vs. pump rate described by slaizer2000 . Were you talking about non-stock pumps?
Click to expand...

If you set the timer to always have both pumps on all the time then you dont have the problem. Because if the power goes out then comes back on then both stay on. So the water level in back stays the same height. You will also notice that with both pumps on the water level in the aquairum is higher and there is much more overflow of water into the back of the tank from the main aquairum. I think it is more than the overflow is designed to do because the water level in the right/left chambers goes lower and the water level in the aquairum goes higher. Also if you have it set to have both pumps on all the time then doesn't that defeat the purpose of the timer? could jsut use regular outlets.

If you use the timer where only 1 pump is on at a time is where you have the problem. Becuase when the wavetimer looses power and power comes back on the default setting for the timer is to engage both pumps on until you adjust the timer. If you are not home then what happens is because both pumps are on, the water level in the back of the rear chambers lowers. This causes the ATO to add extra freshwater to the system.

I tested 2 nights ago to see how much salinity change there would be. Not much. It changed from 1.024 to 1.023 so about a .001 change which i dont think will affect much.

Unplug 1 of your pumps and you will note that the water level in the rear chambers will rise and the water level in the main aquairum will lower. Basically the reverse of what i have on my system since i only run 1 pump at a time on the timer. Will the system flood, no. But with both pumps turned on more water is pumped into the main aquairum and the overflow can't handle that amount at the rate it did the 1 pump. It causes the water level in the aquairum to raise which increases the pressure and then overflows into the back at a faster rate which then equalizes and prevents flooding. IF the overflow handles both pumps or 1 pump with the same effeicenincy then the water level in the rear and main tank would not change because what is pumped in then overflows out. But to get at that with both pumps on, the water height has to raise and increase the pressure and overflow to the rear chamber.

SO yes the overflow does handle both pumps. It jsut has to do it in a different way than when 1 pump is on by raising the height of the water in the main tank to increase pressure and also utilize more surface area of the overflow (heightwise) to overflow the water. But since the level of the water in the tank raises the level of the water in the rear lowers, which then engages the ATO. If is jsut my thought (an i may be wrong) that if the overflow part was wider then it would be able to handle 1 pump and 2 pumps at the same water heihgt and then the water level in the rear and main tank would not chnage regardless of if 1 or 2 pumps are on. but then i guess that is the way overflows works. I guess there is no real way to keep the water level in the back and front of the tank the same level no matter how many pumps you use.
 
Last edited:
slaizer2000: thank you for that! I placed an order for the tank but havent got it yet. But I thought that this would be the case and asked about this a pages back. It makes sense what you are saying. At least I now know that even with the little problem of running the wavemaker, I can still use an auto top off in this tank.

Many thanks for clearing that out.
 
Yeah I have the AquaC remora nano skimmer. I would love to put a fuge on this system, but don't have any knowledge of the best options for this tank. Some links to products perhaps?
 
i am using the center compartment for two things going on at the same time a refugium as well as a phosphate reactor intake going to the skimmer intake so that the water stays crystal clear carbon is not used just what ever a extra nitrates and phospates are removed by the phos chamber
 
Are you guys building your own fuge, or are you buying them? I am not good with DIY so was hoping someone could show me a link for fuge that they are using.

thanks
 
<a href=showthread.php?s=&postid=15463789#post15463789 target=_blank>Originally posted</a> by guinness0514
Are you guys building your own fuge, or are you buying them? I am not good with DIY so was hoping someone could show me a link for fuge that they are using.

thanks
Click to expand...

I use the CPR hang on back refugium. I use the medium (required some slight modification to get the intak/outake to line up with rear chambers by using some tubing). I think 2 others in here use the small size one.

http://www.marinedepot.com/CPR_Aqua..._On_Refugiums_Sumps-CPR-CR1721-FIRFEB-vi.html

There is also the refugium that has a skimmer built in. I recall someone asking about these but i dont know if anyone ever put one on their system or not.

http://www.marinedepot.com/CPR_Aqua..._On_Refugiums_Sumps-CPR-CR1727-FIRFEB-vi.html

You will also need to invest in the CPR lights or some other lighting method for the aquafuge.

http://www.marinedepot.com/CPR_AquaFuge_Light_Refugium_Sump_Lighting-CPR-CR1771-FIRFRL-vi.html

The cpr lights will need stands as well. See accessories at bottom of that link (gray ones or clear ones).

Also hunt around the net. you can possibly find the refugium cheaper at other locations. I recall i bought mine elsewhere.
 
I have found that separate devices is better. Meaning I would run the CPR Small refug and a separate skimmer (Saphire make), I just dont think any one is making something that does everything and does it all 100% - I could be wrong

I got my CPR Small which incldued the light and clear light stands for about $165 from LFS.

One thing I didnt like is how crowded the rear chambers got which made things a real pain when it came to maintenance!

So now I've got a MaxiJet 1200 running from the 2nd chamber (as viewed from front 1 is on left, 5 is on right). This pulls water into my chiller, from there into Phosban Reactor, from there into the refug --- All that with one pump, yes it gets enough flow! Otherwise I would have to have a pump for chiller, one for refug (comes with one), and one for the Phosban Reactor -- again, WAY to tight and crowded.

If you use the center chamber for a skimmer (like Saphire), you will need to slide the CPR refug all the way to the left (from front) because the refug has a brace that will hit the skimmer if you dont, also the skimmer will require taking a dremmel tool and cutting a way a 1/4" x 3" long strip at the very back of the center rear chamber. Its no big deal as the piece cut away is simple a splash "lip". Also, with Saphire make sure you put the power cord (for their pump) between skimmer and main display tank otherwise skimmer will rest up against and water will not flow into center chamber.

Good Luck
 
Re: Aeration without skimmer?

Re: Aeration without skimmer?

<a href=showthread.php?s=&postid=15301269#post15301269 target=_blank>Originally posted</a> by Chemistry Guy
I'm proud to say that I am a new member of the HQI nano-cube club!

I was wondering about foregoing the skimmer all-together like some of you are doing. Do you worry about the lack of aeration?
Click to expand...

Welcome to the insanity. I still haven't re-setup the tank again as I have been to busy but Im still after a few toys. The Euroreef nano skimmer, the vortech mp20 and a chiller for starters. I can't belive this thread split again. Thanks to all who have posted.:D
 
Not to change the current discussion.... But I made a discovery about "flow" over the weekend .

I've replaced the stock main pumps with MaxiJet 1200's. I've also got a Koralia 1 shooting across the rear of the tank and two Koralia Nano's one on each side (left right). I leave all three Koralias on full time and thought I had "great" flow.

Ive been having issues with an acropora that I thought was dead; never see any polyp extension, kinda white at the bottom, etc. So I moved this coral up higher thinking it was a light issue - no change. Then while doing other stuff I managed to pump one of the Korali Nanos so that it was facing almost right on the acro... OMG - Poylps came out from every where!

So now I've moved both Koralia Nanos so that they point towards the back section of my tank. This back section is higher up and has a shelf formed by the rocks... So this is now my high light and high current/flow area. WOW what a difference.

So... When folks talk about needing high-flow - What is really meant? If I was using a bigger K1 or larger, perhaps this would be too much flow and I would need to have it not facing right on the coral. But the Nanos do not put out as much and therefore seem to require 'direct' application to be considered 'high flow.

Now Im considering getting two more Nanos' for the front of the tank as Im thinking that given the size of our tanks and the output from the Koralia Nano that indirect flow from them = low to moderate and direct flow (4-6" away) is high flow and maybe all my corals will be doing better?

Anyone else experiemnted ?
 
ballonpilot, interesting observations. Can you post some video and pictures of your tank in action?
 
Thanks ballonpilot!

That is very useful info! I don't have the saphire skimmer, I have the aquaC remora nano. It is a backpack skimmer that I have hanging off in the center. The pump is in the center chamber, so I wonder if this fuge will fit of the back still as you describe? Anyone have experience working with these two products?
 
two questions for y'all
1. does anyone know the PAR for the stock JBJ bulb?
2. has anyone switched to the radium 20k bulb? This is the one I was looking to switch too cause of more blue and high PAR. If you are using a 20k, why the bulb you picked?
Thanks!
 
You must log in or register to reply here.

Similar threads

AZBigJohn
New Build... I'm back
2
Replies
25
Views
1K
Dustin07
D
C
RSM Max Nano XL Plan / Build
2
Replies
21
Views
1K
griss
griss
D
Structural support for 125 gallon aquarium
Replies
7
Views
379
ddang
D
Brian60077
Big project starting today......
Replies
7
Views
483
Dustin07
D
AquaticReefTV
DIY Cable management time lapse
Replies
1
Views
677
S|\/|S
S
Back
Top