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Old 12/30/2017, 03:49 PM   #1
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What can you do with a BIG tank?

Im in the process of building a new house (roof going up next week) and have had the architect account for a 750 gallon tank. The dimensions would be 10x4x30. Im planning on building the tank out of plywood myself to save money. I build custom homes for a living and working with wood is my life. So a wood tank doesnt scare me as long as its build correct.

I see lots of 8x4x30 tanks being built from plywood because thats the size of a standard piece of plywood. I was planning on doing the 10 tank because I can get 10 plywood. I know the 8 will work but because Ive never seen a 10 Im a little scared. I dont want 750 gallons in my basement man cave.

So my question: What can I put in a 10 tank that wont go in a 8 tank? Do I be the first one to do a 10 tank or just settle for a 8?



Current Tank Info: 225 Gallon Reef with fish room.
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Old 12/30/2017, 04:12 PM   #2
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There may not be much you can put in a 10 that you can't put in a 8, but that really isn't the point is it? Go for the 10 now, you know that's what you want!!! You're not gonna be able to go, Honey, I want to add two more feet to the tank.

They were all in love with dying, They were drinking from a fountain, That was pouring like an avalanche, Coming down the mountain

Current Tank Info: 80 gallon rimless Deep Blue lagoon under construction
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Old 12/31/2017, 02:39 AM   #3
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I'd do the 10'. My basement dream tank would be 14' with 2 viewing windows. Basically find a cheap 125 gallon and use the front and back panels for the windows. Tank would be 14x3x2ft high.

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Old 12/31/2017, 08:14 AM   #4
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I went from a 6 to 8' an it full. Give me a 10 I can find things to do. Need a lot of money tho lol

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Old 12/31/2017, 08:51 AM   #5
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An aquarium is like storage ...... 'crap' simply proliferates to fill the available space. In other words, regardless of size, the tank will be full at some point. Bigger tanks just take longer for that to happen. BUT, 10' versus 8' will allow space for larger or more fish, and larger coral colonies. I just installed an 8' tank - considered 10' but ultimately felt I wouldn't gain all that much.


Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones!

Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs
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Old 12/31/2017, 09:26 AM   #6
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A big tank like this you will want two layers of plywood anyway so you can overlap. More strength and security.
With a ten foot length you get closer to a natural environment for the fish. That's the ultimate goal for us, for the animals to behave like they would in nature. Animals that feel closed in behave like they are....

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Old 12/31/2017, 11:17 AM   #7
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With ten feet, I'd feel more comfortable keeping the larger tangs. Having said that, go twelve feet.

Time flies like an arrow. Fruit flies like bananas.

Current Tank Info: 78"x36"x27" acrylic, 6 Orphek Atlantik V3+ Compacts, MRC Orca Pro II w/washdown, CalcFeeder Pro AC3, Emperor Aquatics 80w UV, 80/20 aluminum stand, Vortech MP60's, Theiling Rollermat, GHL Profilux 3.1T EX, Kessil H380
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Old 01/02/2018, 08:50 AM   #8
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If you're like me you will always want to go bigger!

Started with a 40g, moved to a 75g then to a 150g and now at 96x30x24 300g. My current dream tank is 120x48x36 and IF I ever move again I will make sure I have a large space that can be built around a tank of that dimension.

I went with larger tanks to hold more fish and to have schools of tangs. My current 300g allows me to have a school of yellow tangs and house my favorite fish the powder blue. I originally wanted the 300 to also house an Achilles but I changed my mind as I read more about them and would rather not kill one due to the difficulty. I now want a sohal tang but will need to go larger than my 300 hence my desire for the 900!

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Old 01/02/2018, 11:31 AM   #9
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GO 10! Like many have said there really isn't a world of difference between the 8-foot tank and the 10-foot tank, but simply having a larger tank feels better
It would be terrible if you built the 8-foot and realized you wanted the ten-foot.

Also with a ten-foot tank, you can basically keep any tang that is offered to us as hobbyists.

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Old 01/02/2018, 11:46 AM   #10
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With a 10' tank at least you'll have a little more room to swim around while cleaning it.


Current Tank Info: 90g mixed reef w/ 55g sump/fuge.
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Old 01/02/2018, 11:54 AM   #11
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You have several choices for use of a big tank---either a home for fishes (including some that eat corals) of some size that can use that length or a home for corals and little fishes that stake out territory along the length of the rockwork and pretty well observe the territories they might have in the wild. The one is something you can glance at and enjoy, the other more the sort of thing you maintain a chair and sit and sip, watching the interactions.


Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low.

Current Tank Info: 105g AquaVim wedge lps reef: 3 firefish, yellowhead jawfish, yellow watchman, 3 chromis, tailspot/starry blennies, pink margin fairy wrasse, mandarin, kalk, radion pro, gyre, Eshopps s-200 skimmer, basement sump.
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Old 01/02/2018, 10:17 PM   #12
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As an aside, I used to work for a rich and famous guy with a giant tank across the back of his bar. I used to wonder how the heck they got it in there. I finally saw pictures of the crane lowering it into place — before the roof went on the house as it was under construction. The OP’s post reminded me of that. Just food for thought for folks dreaming big. Of course I’ve since also seen glass tanks built in place.

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Old 01/04/2018, 07:00 PM   #13
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Looks like Im going to need to overbuild a 10 tank and pray it doesnt bust down the road. Thanks everyone



Current Tank Info: 225 Gallon Reef with fish room.
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