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what is your estimate on max turnover ratio in the sump. I can work from there. will figure something out.

squidd, I am going to lay down my rock on a structure a few inches above the bottom. Then I will put in some sand in front of the rock. The question is if I run my returns (two mag 18's) split into two nozzles each down behind the rock to spray under the rock foreward will I have sand kick up...

Actually..I put aside 5 grand for the project. We just filed taxes though and are getting a substantial refund. (something to fix for next year..I would rather hold my money than the govt) SOO made it easier to spend the money without my wife killing me. So not rich just saved up for this and...

wrote that wrong they are 1 1/2" your right.

just to put my thoughts down. I am leaning toward putting 3/4" pvc piping(maybe acrylic..still pursuing that option) under my rock structure. Just a simple box about 3 inches tall and maybe a foot wide or so across the bottom of my tank. Right this second I am leaning on a 1/2 inch sand bed...

:rolleyes: hangin What is the mechanism for the built in returns for not draining the tank. Do they still return ott of the overflow box or something?

I figure I need 20 gallons overflow room. 1 inch of a 180 gallon tank is 18.7 gallons. This is 5.4 inches of the total sump. I know to use a siphon hole in a ott return..not sure how it works with a built in return. Or maybe I shouldn't use the built in returns? Was thinking of using one ott...

Unless I absolutely can not get it in I am going with a 75 gallon tank at 48 inches long. I admit I still don't know exactly the split I am going to do as still waiting for that section in leona's thread :). But..I think I am going to go with 16 inches overflow/sump side (includes baffles), 15...

squidd!! back.. After reading your thread with leona I decided having one corner flow didn't seem like enough surface skimming so i called to have them add a second. I wanted to keep the right corner free of objects so put it in the middle. I am guessing that will up my overflow to 2600 with...

oh i see it now. I kinda like that idea. hmm

so is that acrylic tubing or are those acrylic sheets cut ina mountain shape. Hard for me to tell for sure.

My unbiased opinion changes daily. So, I think I will call it alternating biasism.

that is an idea. Do you have more pictures as you start putting in the LR?

As I stated in the other thread in the reef section I want to build a structure out of pvc to make cleaning a bit easier. Would it be best to cap the ends of it or leave them open. I assume capping them would be better but then I should fill them with something to keep them from floating...

There seem to be 3 types of pvc at HD. Black, Grey and white. I understand the real world purposes of each but can all of them be used for sitting underwater for long periods holding LR? I am going to build a rack system so that I can still blow out detrius from behind and under the rock...

actually..i just meant what size would go through the 32 inch opening. I want to go with a 60 or 75 gallon. I guess I will build a wood square with the dimensions of a 75 and see if it will go through. I want to be able to pull it out without moving the main tank should it be necessary. I...

just what i needed more reading about sand beds!! :eek: hehe..actually ty..am dutifully reading.

I am not sure what I am going to do. Yea BB has been around a lot longer than DSB for sure. Decisions decisions. My head hurts from reading about sand beds :). I change my mind almost hourly of the sand beds in both the tank and fuge. /sigh If I do go with any type of sand bed I hope you...

Beth, These are very knowledgable people that have given up on sand beds..almost always because of the supposed 4 year crash. What are you saying they did wrong? What is the secret to having a sand bed longer? I see more and more of the people that know what they are talking about in these...

so would it be better to have stacked rock or to build a pvc substructure? It would be cheaper and probably more stable as well as easier to keep clean to build a pvc structure. But..I am thinking too many fish would be able to hide (more so than normal) behind/under the rock in the open...