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CodyBot said:
@tbrown Look familiar? He's not shooting it out of the tank this time, but sometimes he does. Those are 1" PVC fittings for scale.

Click to expand...
IMG_20230915_154132835.jpg

This dude is like 3" diameter and about the same height.
 
I'm curious to see how well y'all do. A lot of folks grossly over-estimate how much water is actually in their system.

For instance, let's look at a standard 150 gallon tank. The dimensions are 60"x24"x24". Multiple those dimensions then divide by 231 (cubic inches in a gallon) and you get 149.61 gallons. Neat! However, those are the outside dimensions. Let's back out the 5/8" thick glass. Ooopppsss. There went roughly 15 gallons just with the glass! That brings us to 135.25 gallons. Oh! But that's with the tank completely full! Let's drop that an inch and a half. Uh oh! That brings us down to 126.57 gallons, and that's before the rocks, sand, corals, fish, etc are put in! The reality is that the 150 gallon display is probably only holding maybe 100 gallons of water in most cases.

Just something to think about when y'all are doing your calculations.
 
I’m most curious to see how you plan to measure the displacement Cody. Add to a full bucket and measure how much spills out?

Or do you have a really large beaker?
 
codybot bar.jpg


GAME REMINDER
DISPLACED



Think you know how much water is actually in your system? Time to see how well you can guess how much water is displaced by the rocks! For this game, guess how many gallons of water you think 20.6 pounds of Marco Dry Rock will displace. Guess to the nearest tenth (ex. 10.2, 14.6, etc.). The closest without going over wins a $50 GIFT CARD!!!

One entry per person. In the event of a tie, the wheel will pick the winner. The game goes until the start of the sale on Saturday then the winner will be announced shortly after. Good luck!​
 
Hungrypede said:
I’m most curious to see how you plan to measure the displacement Cody. Add to a full bucket and measure how much spills out?

Or do you have a really large beaker?
Click to expand...
Put the rocks in a bucket and filled it up until it almost overflows. Take the rocks out, then measure how much water I have to add in to get it to almost overflow. Not 100% precise but close enough.
 
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CodyBot said:
I'm curious to see how well y'all do. A lot of folks grossly over-estimate how much water is actually in their system.

For instance, let's look at a standard 150 gallon tank. The dimensions are 60"x24"x24". Multiple those dimensions then divide by 231 (cubic inches in a gallon) and you get 149.61 gallons. Neat! However, those are the outside dimensions. Let's back out the 5/8" thick glass. Ooopppsss. There went roughly 15 gallons just with the glass! That brings us to 135.25 gallons. Oh! But that's with the tank completely full! Let's drop that an inch and a half. Uh oh! That brings us down to 126.57 gallons, and that's before the rocks, sand, corals, fish, etc are put in! The reality is that the 150 gallon display is probably only holding maybe 100 gallons of water in most cases.

Just something to think about when y'all are doing your calculations.
Click to expand...
That's about what I estimate. My 125 plus 40 gallon sump (about 2/3 full) runs about 100 gallons after rocks, sand, equipment, etc. I estimated 100 gallons and dosed based on that and then tested and was almost spot on. I think I'm probably closer to 95 gallons but...
 
CodyBot said:
codybot bar.jpg


NEW GAME
DISPLACED



Think you know how much water is actually in your system? Time to see how well you can guess how much water is displaced by the rocks! For this game, guess how many gallons of water you think 20.6 pounds of Marco Dry Rock will displace. Guess to the nearest tenth (ex. 10.2, 14.6, etc.). The closest without going over wins a $50 GIFT CARD!!!

One entry per person. In the event of a tie, the wheel will pick the winner. The game goes until the start of the sale on Saturday then the winner will be announced shortly after. Good luck!​
Click to expand...
1.81
 
tbrown said:
That's about what I estimate. My 125 plus 40 gallon sump (about 2/3 full) runs about 100 gallons after rocks, sand, equipment, etc. I estimated 100 gallons and dosed based on that and then tested and was almost spot on. I think I'm probably closer to 95 gallons but...
Click to expand...
Standard 125 and 40 breeder sump? I'll do some rough maths for you.
 
CodyBot said:
Standard 125 and 40 breeder sump? I'll do some rough maths for you.
Click to expand...
Standard 125, approximately 40 gallon sump (Eshopps - I forget which one), about 100 pounds of rock, 60 pounds of sand...
 
tbrown said:
Standard 125, approximately 40 gallon sump (Eshopps - I forget which one), about 100 pounds of rock, 60 pounds of sand...
Click to expand...
I'm not going to do the rock and sand yet until I post the results of this game. It gives you a rough idea per pound of how many gallons rock displaces. I would need to do another for the sand.

What thickness of glass does your tank have? What are the outside dimensions? Sometimes they goof a little on sizes. I'd need the same for your breeder. Also, what"s the gap between the water and the top?
 
Coral Websites said:
DOORBUSTER-BAR.jpg


HERE IS A DOOR BUSTER DEAL TO GET THINGS STARTED.
​
Small Gem Tang (Ships by 10/10/23)
Multiples Available
Sale $309 | Retail $800

​
Click to expand...
I just heard that a handful of y'all have already bought some of these gorgeous suckers! Who all is getting one?! I got my Gem Tang yesterday so I'm officially in the club. Y'all wanna make matching jackets?!
 
eat.gif


Although, he can throw those radishes in the trash. I mean, I don't want him to not put them on the taco and save them for someone else. I want him to take mine and put them directly in the trash so that I can hopefully make him run out and not have the opportunity to attempt ruin someone else's taco as well.
 
CodyBot said:
I'm not going to do the rock and sand yet until I post the results of this game. It gives you a rough idea per pound of how many gallons rock displaces. I would need to do another for the sand.

What thickness of glass does your tank have? What are the outside dimensions? Sometimes they goof a little on sizes. I'd need the same for your breeder. Also, what"s the gap between the water and the top?
Click to expand...
I think the glass is 3/8".
18" wide
72" long
21.5" to the top of the water.

Eshopps RS 300 Sump running about 10" deep
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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    Votes: 3 4.3%
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