20 gallon long sump??

[smt91278]

got a 90 gal setup and ive started plans on a sump/refuge design. ive built my stand myself and im planning on putting my sump in the stand. about the only tank i can fit underneath is a 20 gallon long tank. ive got 33x14x15inches worth of room. i have a self built in and would like to keep it. is a 20 gallon long enough of a tank to combine both a sump and refuge???? to me, it doesn't seem big enough for both....plz help

 

[tdog7879]

I use this on my 80 gallon tall because of the limted space hope this helps.

 

[smt91278]

Originally Posted by tdog7879
http:///forum/post/2787884

I use this on my 80 gallon tall because of the limted space hope this helps.
how big is your sump/refugium? looks like something ill have to put together for my setup. just worried i won't be able to get all my equipment in, and have room for refugium. thanks for your help

 

[gatorwpb]

I have a 20L as a sump/fuge for my 65g and it looks very similar to that (well about 2.5yrs older looking lol)
Butit should be plenty. I think the general idea is sump/fuge to be 1/3 the size of DT, but its not undersized.
A 30g wont fit under a 48" stand?
Edit:
Also, Id add another baffle before the return to act as a bubble trap. Possibly even a second baffle on the drain side as well. 2 baffles on drain side and 3 baffles on return side help prevent micro bubbles from getting into the DT.

 

[wattsupdoc]

Originally Posted by tdog7879
http:///forum/post/2787884

I use this on my 80 gallon tall because of the limited space hope this helps.

That doesn't look to have a very good flow. The water runs along the top of the fuge and not through the fuge. I don't believe it would be very efficient.
Originally Posted by GatorWPB
http:///forum/post/2789118
I have a 20L as a sump/fuge for my 65g and it looks very similar to that (well about 2.5yrs older looking lol)
Butit should be plenty. I think the general idea is sump/fuge to be 1/3 the size of DT, but its not undersized.
A 30g wont fit under a 48" stand?
Edit:
Also, Id add another baffle before the return to act as a bubble trap. Possibly even a second baffle on the drain side as well. 2 baffles on drain side and 3 baffles on return side help prevent micro bubbles from getting into the DT.
I agree, but would like to see it bigger if possible. A 29 is 30X 12X 18 tall, I think it is. That wont fit under a 4 foot tank? Whats the 20 long? 30X 12 X 12 tall.
I don't see why it wont fit. It will give you more water volume in the fuge. By the time you add a 4 in DSB, then allow for backwash (7.48 gall. on that 90.) It doesn't allow much room for the cheato (3in maybe). Additionally, most skimmers run best in 8-10 in of water. The 20l is only 12 in tall. So to allow for backwash (about 4-5 in of the 20L, you'll only have 7 in in the skimmer compartment. That will be enough, but why not go to the 10in level?
IMO, a standard 29 makes a much better choice.

 

[smt91278]

Originally Posted by wattsupdoc
http:///forum/post/2789577
That doesn't look to have a very good flow. The water runs along the top of the fuge and not through the fuge. I don't believe it would be very efficient.
I agree, but would like to see it bigger if possible. A 29 is 30X 12X 18 tall, I think it is. That wont fit under a 4 foot tank? Whats the 20 long? 30X 12 X 12 tall.
I don't see why it wont fit. It will give you more water volume in the fuge. By the time you add a 4 in DSB, then allow for backwash (7.48 gall. on that 90.) It doesn't allow much room for the cheato (3in maybe). Additionally, most skimmers run best in 8-10 in of water. The 20l is only 12 in tall. So to allow for backwash (about 4-5 in of the 20L, you'll only have 7 in in the skimmer compartment. That will be enough, but why not go to the 10in level?
IMO, a standard 29 makes a much better choice.

what is cheato? what is its purpose? it goes in the refugium side right? where do you get cheato?

 

[wattsupdoc]

The green ball of stuff in the pic, that's cheato. It's a macro algae, you grow it in order to take up nutrients as well other things in the column that nuisance algae needs, thus outcompeting it. It serves as a host for many critters like copepods, worms etc, that you want to grow. They thrive in the cheato and digest uneaten food etc. there are various forms of macroalgaes and there are different methods for keeping it. I use both cheato and Halimeda.
There are many places you can get it from. When you get ready for it, give me a shout and I'll send you a big ole gob, just pay the shipping. I'm getting ready to harvest some real soon. It should be crammed with pods.

 

[tdog7879]

That doesn't look to have a very good flow. The water runs along the top of the fuge and not through the fuge. I don't believe it would be very efficient.
The pump wasn't turn on in that pic
I agree, but would like to see it bigger if possible. A 29 is 30X 12X 18 tall, I think it is. That wont fit under a 4 foot tank? Whats the 20 long? 30X 12 X 12 tall.
I don't see why it wont fit. It will give you more water volume in the fuge. By the time you add a 4 in DSB, then allow for backwash (7.48 gall. on that 90.) It doesn't allow much room for the cheato (3in maybe). Additionally, most skimmers run best in 8-10 in of water. The 20l is only 12 in tall. So to allow for backwash (about 4-5 in of the 20L, you'll only have 7 in in the skimmer compartment. That will be enough, but why not go to the 10in level?
IMO, a standard 29 makes a much better choice.

[/QUOTE I made the refugium that size so i can enough room to install a skimmer where the water return is.

 

[tdog7879]

Originally Posted by smt91278
http:///forum/post/2788520
how big is your sump/refugium? looks like something ill have to put together for my setup. just worried i won't be able to get all my equipment in, and have room for refugium. thanks for your help

Thats a 20 gal long.

 

[wattsupdoc]

The pump wasn't turn on in that pic
It's just that with that single baffle before the fuge, the general flow of the water will be linear all across the top. Sure there will be fallout, if the flow is slow enough, as well as some mixing, but you will have a current that generally just moves across the top. The macro wont see all of, in fact most of the water. Also the two baffles before the return pump IMO could use a third, in order to help prevent the bubbles from making it to the return pump. These would be caused by the water falling between the baffles as it leaves the fuge. a little short 6 or 8 in baffle extending up right before the pump usually does the trick.

 

[tdog7879]

Originally Posted by wattsupdoc
http:///forum/post/2790815
It's just that with that single baffle before the fuge, the general flow of the water will be linear all across the top. Sure there will be fallout, if the flow is slow enough, as well as some mixing, but you will have a current that generally just moves across the top. The macro wont see all of, in fact most of the water. Also the two baffles before the return pump IMO could use a third, in order to help prevent the bubbles from making it to the return pump. These would be caused by the water falling between the baffles as it leaves the fuge. a little short 6 or 8 in baffle extending up right before the pump usually does the trick.
what do you mean the macro won't see all of it? Also the one baffle after the refugium is lifted up to which makes my bubble trap...so no bubbles in the DT.

 

[wattsupdoc]

Originally Posted by tdog7879
http:///forum/post/2790849
what do you mean the macro won't see all of it? Also the one baffle after the refugium is lifted up to which makes my bubble trap...so no bubbles in the DT.

As I said, the water moves mostly along the top through the fuge. It doesn't necessarily just blend with the water in the chamber. You want the water to flow through the macro.
I understand there are two baffles in there, if the flow rate was faster, or when enough evaporation occurs, there will be. A third short baffle would prevent faster flow from doing this.