Sump and refugium questions

[Hanali]

I am looking at my setup and well I am not to happy at the moment. I have a 55 gal tank and not enough water in it. I own a wet/dry that lost it's BIO balls long ago and is now just a filter.

Here it is. I own the 75 Gallon Wet/Dry.
http://www.pro-clear.com/wetdry.html

Now to my plan... I want to build a sump/refugium. I do not mind using the current wet/dry as a sump but have no clue how to do the refugium.

First...

How do I add more water without crashing my tank?

If I add fresh water it would lower the salinity right? If I add saltwater it would do the same. How can I add water without crashing the tank? Is slowly 50/50 the answer?


Second...

Building a refugium. I could create a second box in addition to the wet/dry but how would I avoid micro bubbles and so on?

The Wet/Dry in the past created some and I figure some pump or method of getting the water into the refugium may create more... so if I use it how would I minimize this and move the water?

I really like this setup but wonder about the noise.
http://www.melevsreef.com/55g/55sump.html

I am not good at building things but am willing to give it a shot to stabilize my tank.

Kim

[Ping]

I am not sure about your question, however, if you add a new fuge or sump to your system, you add water that is at the same salinity as your current system.

[PeeJ]

Simply eleveate the refugium rim above the sump. Drill the refugium for a PVC drain close to the top and use a small power head to feed it from the sump.

I am looking at my setup and well I am not to happy at the moment. I have a 55 gal tank and not enough water in it. I own a wet/dry that lost it's BIO balls long ago and is now just a filter.

Here it is. I own the 75 Gallon Wet/Dry.
http://www.pro-clear.com/wetdry.html

Now to my plan... I want to build a sump/refugium. I do not mind using the current wet/dry as a sump but have no clue how to do the refugium.

First...

How do I add more water without crashing my tank?

If I add fresh water it would lower the salinity right? If I add saltwater it would do the same. How can I add water without crashing the tank? Is slowly 50/50 the answer?


Second...

Building a refugium. I could create a second box in addition to the wet/dry but how would I avoid micro bubbles and so on?

The Wet/Dry in the past created some and I figure some pump or method of getting the water into the refugium may create more... so if I use it how would I minimize this and move the water?

I really like this setup but wonder about the noise.
http://www.melevsreef.com/55g/55sump.html

I am not good at building things but am willing to give it a shot to stabilize my tank.

Kim

[erikharrison]

http://www.wetwebmedia.com/ca/volume...es/baffles.htm

[Hanali]

Thank you guys. The baffles will not work for my wet/dry... it is to small. The skimmer is what causes them due to the way the water exits the system. Think I will have to build a new sump/refug to remove the bubbles and get the most water.