need help with bare tank 1500gal

Bdial

Member
I am helping a few people bring back to life a 1500 gal aquarium. It was in bad shape before and all we have done so far is buff the dagum thing. The tank is roughly 16ftx6x30in. It still has equipment underneath that needs removed as it has been taken off line for several years now. Currently the tank has overflows on both ends. Two 2" lines running to a 4" line leading to the sump. The sump is a simple berlin sump. There are 3 external pumps for circulation, a set of carbon reactors and an unused aquac1000 skimmer. This tank is bare bones and the guys im helping want to make it a soft coral tank. There is a lot of work that needs done to get to where we can actually start on the guts. I cant have the tank moved so the size of the equipment going in is limited. I have no access to a remote location either so nothing tall either. Money doesnt seem to be a concern with these guys so im asking for help with ideas here.

What im wanting to do is to pull out all of the equipment that is unnecessary. There are two sand filters, somesort of bioball circulation thing and the aquac skimmer. There is also a rusted over chiller unit that will be removed. I want to pull the drain lines and retighten the bulkheads as they are salt creeped over. It has a 120watt emperor uv that needs a new bulb. I will keep the uv. What im really fretting over is the sump. I want to incorporate a fuge for mostly chaeto and a dsb. This sump is 48x48x30. There is no getting in the thing to clean it or remove it easily. It is fiberglass and I thought about cutting it out. But what can I use for a sump? Can I get two 180 gal tanks and use those? One for filtration and the other as a fuge? I will also be adding a large rodi unit with a large topoff system and a asw container to help with waterchanges.
I will also be adding like 1000lbs of a nice white sand and several hundred lbs of rock. The rock is in my backyard right now. I need to bleach it and acid it.

There is no where to incorporate a closed loop system. So I was thinking of getting some seaswirls and moding them to hold some large tunze for some extra flow. The acrylic is appx 2" thick so I cant mount anything on the acrylic.

I am also looking for a good skimmer. What should I go with? Beckett style? Downdraft? Recirc? Vertex? Sro? So many choices.

Any ideas or helpful thoughts are extremely appreciated. We are hoping to start some ordering for parts next week and hopefully have this beast filled by the end of next month.
 
Heres an idea of what im working with. Just so ya know im not trollin.

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I would separate what you need from nice to have. You don't need a DSB or refugium. I agree that it would be better to remove the one large sump and add separate vessels later as needed.

You don't need to go with just one skimmer. If there's nothing wrong with the existing one and you have room under the tank, just add a second skimmer to split the load.

That's a lot of sand and just about any powerhead is going to blow it around unless you use a heavy gravel on top of the sand to hold it down.

Dave.M
 
As im writing and drawing my plans I dont think I can remove the sump efficiently. I mean I can remove it but I dont think I can match the flow capacity. It has 8 filter socks and a ton of bulkheads for all the doodads it had. I think I can clean it up and modify it a bit to make it better. I can add a fuge to it easier than removing it and adding a new sump. If I could remove the tank I would install a large custom sump with baffles and what not.

So you think if we add a second ev1000 that those would be sufficient for the system? I know I have room for that. It would be easier that way. I would just like to have had a nice new skimmer put in on this. The old skimmer however drains into a floor drain. Thats nice.
 
Does anyone have experience with the aqua c 1000? What is the best pump for it?
I think that im going to offer doing a fuge at a later time. For now im going to suggest macro algae in the display to help with nutrients. Dragons breath, gracilaria, etc. Hows that sound?
 
I wouldn't put algae in a display that big, you'll never get it out. Get the current skimmer working, then get another one to complement it if you don't think it's big enough to handle the bio load.
 
I'd say to keep it simple and skip the 'fuge/algae farm. If the owner wants to keep softies, phosphates shouldn't be a concern. A bunch of tangs and rabbit fish will munch on any algae present in the tank.
 
Thats true. Today im gonna try to price all the things we need. Im gonna look to see of there are any dc pumps strong enough for the skimmer too. Once I get the listed laid out ill post it. All I have right now is a list of what I plan to do. I just need to add equipment to certain tasks.
 
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