Large Aquariums 180g - 399g

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A forum for people interested in keeping large aquariums. This forum is dedicated to water volumes of 180 gallons to 399 gallons. Anything more is a monster tank!
K
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    • Love
210G Peninsula Build!
2
Replies
27
Views
1,056
Kruss7
K
Grog
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    • 2 Thumbs
180 Oceanic - "Heavy"
Replies
13
Views
596
Grog
Grog
bakbay
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    • Mind-blown
Bakbay’s 360g Carpet Dream Tank
2
Replies
38
Views
1,279
bakbay
bakbay
brianhama
Outdoor sump?
Replies
11
Views
369
cilyjr
cilyjr
philippe scuba
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my new 264g with Tenecor stand to replace my 20 years old 90g Oceanic
Replies
9
Views
433
Gumbies R Us
Gumbies R Us
M
225 Cracks on top plastic frame
Replies
4
Views
190
SoggyNW
SoggyNW
JGT
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    • Wow
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Large Build My 240, My 240/Basement Fish Room, My 240/Basement Fish Room/built into a full wall bookcase and focal point of house addition.
2 3 4 5 6
Replies
109
Views
3,628
JGT
JGT
Martingale
    • Like
Custom Eurobraced Planet Aquarium 180G
Replies
11
Views
644
Martingale
Martingale
DakotaTheHutt
First large build - making sure im not missing anything!
Replies
13
Views
358
DakotaTheHutt
DakotaTheHutt
Z
Emergency! Waterbox 230
Replies
10
Views
310
Xxflounderxx
Xxflounderxx
drcrook
Maintenance of Big Tanks
Replies
3
Views
301
Ernie Mccracken
Ernie Mccracken
A
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My basement peninsula (~240G ish), starting from studs.
Replies
10
Views
596
Areseebee
A
revenant
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Large Build My 300G project.
Replies
11
Views
541
lbacha
lbacha
ze_reef
    • Like
Red Sea Reefer 3XL 900 G2+ Noob Build
2
Replies
34
Views
1,064
ze_reef
ze_reef
poseidonsparadise
    • 2 Thumbs
In the wall/ sump in the basement.
Replies
5
Views
229
JGT
JGT
drcrook
New House, New Build
Replies
6
Views
329
reeferKen
R
LowCo Reefer
LowCo's 200 NUVO Peninsula EXT
2
Replies
30
Views
1,342
LowCo Reefer
LowCo Reefer
Raptor72
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    • Like
Raptor’s WATERBOX LX 330.7
Replies
19
Views
1,531
Raptor72
Raptor72
O
Return Pumps 300 Gallon
Replies
4
Views
308
cilyjr
cilyjr
125mph
My new tank, Reef Savvy 180 and Benner stand
Replies
9
Views
420
125mph
125mph

Looking back to your reefing roots: Did you start with Instant Ocean salt?

  • I started with Instant Ocean salt.

    Votes: 133 74.7%

  • I did not start with Instant Ocean salt, but I have used it at some point.

    Votes: 16 9.0%

  • I did not start with Instant Ocean salt and have not used it.

    Votes: 27 15.2%

  • Other.

    Votes: 2 1.1%
See comments…
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