largest tank you've seen on R2R?

[Salman123]

Hey all, as the title says, I’ve been wondering after reading Andrew Sandler’s 17k gallon “polo reef”. What’s the largest tank you’ve seen on R2R?

 

[Gumbies R Us]

This is one you should follow

Monster Build  Thread 'DIY Concrete Aquarium 5,000 gallon - Anderson Family Reef'

Feb 13, 2019

***Skip to page 33 to see the Concrete Tank build - 5000 gal***

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The time has come to build out another sweet large reef.

Here is my last one: Anderson Family Reef - 1200 Gallon Reef



This time I will build out an in wall 720 (8'x3'x4') and a 740 (9'x4'x33") in the fish room.

• dca22anderson
• 720 740 anderson family reef sps
• Replies: 3,462
• Forum: Monster Tanks 400g+

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[Salman123]

This is one you should follow

Monster Build  Thread 'DIY Concrete Aquarium 5,000 gallon - Anderson Family Reef'

Feb 13, 2019

***Skip to page 33 to see the Concrete Tank build - 5000 gal***

***
________________________________________________________________________________________

The time has come to build out another sweet large reef.

Here is my last one: Anderson Family Reef - 1200 Gallon Reef



This time I will build out an in wall 720 (8'x3'x4') and a 740 (9'x4'x33") in the fish room.

• dca22anderson
• 720 740 anderson family reef sps
• Replies: 3,462
• Forum: Monster Tanks 400g+

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• 
• 

Wow thank you. This is pretty cool!

 

[Randy Holmes-Farley Verified Community Expert]

This one is a whopper:

B

Build Thread  Thread '13,000 Gallon 40 ft long outdoor home reef tank'

Jun 22, 2025

Hi Everyone! Check out my 13,000 gallon 40 ft long outdoor reef tank on YouTube.

• Backyardocean
• Replies: 38
• Forum: Member Tanks

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[Salman123]

Dang. You think it’s big enough for a blue tang?

This one is a whopper:

B

Build Thread  Thread '13,000 Gallon 40 ft long outdoor home reef tank'

Jun 22, 2025

Hi Everyone! Check out my 13,000 gallon 40 ft long outdoor reef tank on YouTube.

• Backyardocean
• Replies: 38
• Forum: Member Tanks

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