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 Post subject: DIY - 100 Gallon Acrylic
PostPosted: Sat Jul 01, 2017 4:04 pm 
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I am an absolute newbie to saltwater. Still went ahead with a built - 100 Gallon DT and and 33 gallon sump :)


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Sun Jul 02, 2017 1:40 am 
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The reef bug bit me a few months back and I went out to the market for quotes. Though a newbie at saltwater, i never wanted a cube or something too small. My requirement was a 100 Gallon display + a sump that can effectively support it with a refuge. Its when quotes went over 15-18 K that i decided to build one myself - DT, Sump & Stand. Uploading few pics here on the progress..


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File comment: Display Tank - 15 mm cast acrylic
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File comment: Stand frame
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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Sun Jul 02, 2017 11:20 am 
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Reef Force One
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What dimensions are they? I ask because the acrylic looks rather thin.

Guessing you've done the structural safety calculation.

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Sun Jul 02, 2017 12:59 pm 
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The DT is 120 CM Length , 60 Cm Height, 60 CM width. Acrylic is 15 mm cast, below is another pic . Did some research and the recommended thickness was 12 mm here with brace. Thought of going for a bit more thickness just to be sure nothing goes wrong..

What do you guys think ?? Did i make a classic rookie mistake ?


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Mon Jul 03, 2017 8:51 am 
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Great White Shark
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Great!!! Hope it does not get scratches...

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Mon Jul 03, 2017 10:09 am 
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Reef Force One
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if youre feeling brave, do a fill test with Fresh water in the bathtub and see if you get any bowing. If you do, look into Eurobracing the tank. Top and Bottom.

Which sealant did you use?

That being said...that's a fantastic looking build

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Mon Jul 03, 2017 10:26 am 
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Reef Force One
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Just did a quick check...
According to the calculator I’m using at standard safety factor of 3.8 you should be using at least 17mm if supported / braced and your bottom pane should be 19mm. If rimless like you have made it, then the acrylic thickness recommended is 26mm.

Definitely do the water test as different acrylic manufacturers have different strength ratings on their sheets. good luck.

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Mon Jul 03, 2017 9:53 pm 
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Sealant - Weld-on 4

I followed this calculation for thickness - http://www.garf.org/tank/buildtank.asp

Also referred to Joey's(King of DIY) reco. both of which suggested 12 MM and i ended up with 15 mm brace less....

Fingers crossed :x


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Tue Jul 04, 2017 12:02 pm 
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Damsel Fish

Joined: Tue Mar 19, 2013 3:36 pm
Posts: 175
Location: Sports City
:up: Neat job!

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Wed Jul 05, 2017 5:50 pm 
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Reef Force One
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Location: Dubai
Deegee wrote:
Sealant - Weld-on 4


Bought that locally?

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Wed Jul 05, 2017 6:31 pm 
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The Evil Mod

Joined: Thu May 13, 2010 3:01 pm
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looks super.
just one suggestion, it looks like u have 2 drains and 1 return. Usually people prefer to have the 1 of the drains a larger size than return incase it gets clogged up it can still handle the flow.
if u go with having both the drains open, u will just have to deal with more noise more plumbing parts etc.


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Fri Jul 07, 2017 2:15 pm 
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Weld on 4 from Ebay

I'm going with both the drains open - There was noise issue at first, but i reduced flow at the top in one of the drains using something tht was lying around in the house (It came with a garden hose i purchased long back i guess, See the small green thing) also adjusted the flow using the stop valve - This solved the noise issue.

Have kept the plumbing as simple as possible - See the pic

Also started the cycle - No bowing so far .. Happy tht not even a single drop leaked so far :) Hoping for the best ! (Pic attached)

Have not used epoxy for the rock( Some 15 Kgs already in the tank - Cured for almost 2 months) - Just dropped it onto the water for the cycle to start - I may scape it later ...

Have got another 15 Kgs being cured right now - Unfortunately i had to boil it due to Aptasia :( - Around 100 or more of them. (Kept them in a tub and soaked in boiling water - In the balcony)

Some parts of the rock turned light green after boiling, may be all the minerals leeching. Will have to cure them for a real long time and seed it with a live rock at a later stage.

Any inputs on this are welcome :)


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Fri Jul 07, 2017 9:44 pm 
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The Evil Mod

Joined: Thu May 13, 2010 3:01 pm
Posts: 3273
for safety with the drains do this.
block both drains so no water can go down them, and then run ur return pump (this will simulate a scenario if ur pumps were to get blocked). the pump will send the all the water from the return chamber to the tank. The goal of this exercise is to ensure that the tank doesn't overflow, i.e, the tank can handle all the water coming up from the sump. I cant fully see the return chamber but it looks like u should be ok.
for noise, look at getting a Maggie muffler, this is one of the easiest and quietest solutions. it will also stop fish etc from going thru the drain.
as for the bowing of the tank, try and run the powerheads at full pointed towards the front or rear glasses. This will put maximum pressure on the seams and if anything to worry about u will see it in a few hours or so.
PLEASE make sure ur monitoring ur tank when doing both of the above and please don't hold me responsible if anything leaks. These are both stress tests and u should not do them unless u have the time to monitor ur tank and are willing to risk water on ur floor.


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Fri Jul 07, 2017 10:21 pm 
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Did the both the tests - tank and sump over flow scenarios - 1 )switched off the power to see if the sump can take all the water returning 2) blocked both the drains with the pump running - to my relief - no over flows :)

As for the silencer - Will get a Maggie muffler :) Will hunt the locals stores to see if one is available :)

Did stress for a whole day with both the power heads pointing towards the front side - no bowing or leak noticed - However, i don't wanna take a chance - Planning to get make a brace insert from top(a narrow 3 cm insert most probably, that cover the tank from outside tightly)

Below is a pic of the return chamber


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Sat Jul 08, 2017 12:27 am 
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The Evil Mod

Joined: Thu May 13, 2010 3:01 pm
Posts: 3273
consider a euro brace. I didn't want a center brace on my tank but wanted to make sure it was safe so got a euro brace on top and bottom.
no issues
Maggie muflers were available at premier pets and u can easily order one online


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Mon Jul 10, 2017 3:22 pm 
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Reef Force One
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Location: Dubai
Nice work. Happy its holding well.

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Click here to view My 175G Mixed Reef

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Mon Jul 10, 2017 9:50 pm 
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Phytoplankton
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Location: Riyadh - Saudi Arabia
Very Nice and well built tank, following along for future updates

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Tue Jul 11, 2017 12:27 am 
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Tiger Shark
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Location: Dubai
what lighting have you planned?

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Sat Sep 09, 2017 11:35 pm 
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Guys, sorry i couldn't update all these days, was busy shifting apartment... went live just last week .. few pics below .. As for lighting its a Vipar Spectra 165 w X 2


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Sat Sep 09, 2017 11:46 pm 
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Few frags added too.... fingers crossed .. all the live stock are doing good so far, eating really well - on a mixed diet of Frozen Mysis & Brine Shrimp, NFL small pellets, Seachem Flakes... The dotty back loves the flakes, Clowns and Anthias are all behind Mysis... they are spitting the New Life Spectrum out which is kinda sad to see.. Hopefully they'll get used to it ... Feeding really small amounts Morning and Evening .. the scooter blenny is seen picking from the sand, i dont feed his specifically .. there are few hermits in the system as well, including a beautiful blue one..


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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Mon Sep 11, 2017 1:45 pm 
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Reef Force One
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Location: Dubai
looking good.

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Tue Oct 03, 2017 2:14 pm 
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Great White Shark
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Great build... watch out for that Dotty Back...

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 Post subject: Re: DIY - 100 Gallon Acrylic
PostPosted: Tue Feb 06, 2018 10:11 pm 
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Lion Fish
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Nice job man really good
Quick advice with time the tank will now make sure u have a look every day I would say
I made a 150 /60/60 27 mm acrylic and after 92 days it started bowing and every day it was increasing adding a lot of stress on the bonding edges

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