RedSea 425XL-G1 Build

MadReefer

Vice President

Staff member

NJRC Member

Moderator

• Jan 9, 2026

• #1

Floor supported and leveled. Now to make water.

 

MadReefer

Vice President

Staff member

NJRC Member

Moderator

• Jan 9, 2026

• #2

Tank pic

 

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MadReefer

Vice President

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• Jan 9, 2026

• #3

Floor support. Pics are bad as video was to large.

 

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N

nvladik

NJRC Member

• Jan 9, 2026

• #4

I had the G1 a long time ago, loved that tank.

 

iTzJu

Officer Emeritus

NJRC Member

• Jan 9, 2026

• #5

looking forward to the new build!

 

N

nvladik

NJRC Member

• Jan 9, 2026

• #6

@MadReefer did yours come with that glass top-off water box thingy?

 

MadReefer

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• Jan 9, 2026

• #7

nvladik said:

@MadReefer did yours come with that glass top-off water box thingy?

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It came with custom mesh top.

 

N

nvladik

NJRC Member

• Jan 9, 2026

• #8

MadReefer said:

It came with custom mesh top.

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I mean the auto-top-off for the evaporating water. G1s came with an additional 2-3 gallon glass box that sat on top of the sump, and then a hose went to the float valve. It was gravity fed.

 

MadReefer

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• Jan 9, 2026

• #9

nvladik said:

I mean the auto-top-off for the evaporating water. G1s came with an additional 2-3 gallon glass box that sat on top of the sump, and then a hose went to the float valve. It was gravity fed.

Click to expand...

Yes, I do have that.

 

MadReefer

Vice President

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• Jan 10, 2026

• #10

Can't catch a break.
Tank wasn't flush with back of stand so I moved it. We'll seems I screwed up the level. Guy is coming back Mon morning to re-level it.

 

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N

nvladik

NJRC Member

• Jan 10, 2026

• #11

MadReefer said:

Can't catch a break.
Tank wasn't flush with back of stand so I moved it. We'll seems I screwed up the level. Guy is coming back Mon morning to re-level it.

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Check if the stand is level. Tank will level out on the mat with more water.

 

MadReefer

Vice President

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• Jan 10, 2026

• #12

I can't lift the tank myself....lol. I assume I shifted the shim which caused this problem.
I feel more comfortable seeing the water level in the tank.

 

N

nvladik

NJRC Member

• Jan 10, 2026

• #13

all I am saying is, don't rely on the water. Check the stand. The tank will settle on the foam with more weight.

 

MadReefer

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• Jan 10, 2026

• #14

I hear you but its off by a lot. Guess pics don't show it well. If it was a little I get your point.

 

MadReefer

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• Jan 12, 2026

• #15

Tank and stand leveled. About 30g of water but still seems off to me. My wife said its fine and I'm just going crazy.

 

Joel T

NJRC Member

• Jan 12, 2026

• #16

Tank looks brand new. Following along.

 

MadReefer

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• Jan 12, 2026

• #17

Think my wife is right. Added 15g more so a little over half full. I took a tape measure and went from top rim to water level. All measurements were the same.

 

MadReefer

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• Jan 12, 2026

• #18

Done for today.

 

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H

horseplay

NJRC Member

• Jan 13, 2026

• #19

I will fill it all the way to the top and check. I mean you're almost there. Really drive me crazy when it's just a little bit off. Where my new 125g sits happened to be super level. Very lucky because the house is very crooked being 100 years old.

 

mrehfeld

Officer Emeritus

• Jan 13, 2026

• #20

MadReefer said:

Floor support. Pics are bad as video was to large.

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I'd be inclined to get your support off of the dirt, it could lead to wood rot. Perhaps stone block or pavers with a moister barrier in between the block and wood.