Breeze Blocks In A Fish Tank

[Greg Night]

other than them floating (which can be sorted out) is it ok to have them in ur tank?

x

 

[The-Wolf]

no they are not safe.
they are made primarily from cement and that will create havoc with your water params.
then there are the bonding chemicals that will do who knows what to the health of the fish.

 

[raptorrex]

no they are not safe.
they are made primarily from cement and that will create havoc with your water params.
then there are the bonding chemicals that will do who knows what to the health of the fish.

lol to true!!!!!!!!!!!!!!!!

ok, why would you want such an ugly bit of "whatever" in your tank? if you try to work them they crumble and they collapse when drilled. though the building site is not a total loss, for fish decco and toys. Most "tie irons", bits of metal used to connect the outer and inner walls, are made of high quality stainless steel, well in the UK anyway, these make great weights for the veg that tends to float, they are about a million times more useful than a screwcumber! bricks too offer some nice bits. if you silicone 4 bricks, the ones with the 2 or 3 holes in the middle, together, in a box shape. then use a core drill to cut cylinders out of the box. the resulting "core" can then be split and you have 2 half tubes with holes running through them, the core drill gives them a very smooth finish too. if you cut the core from odd angles the holes get very interesting when it is split. the plethora of plastic pipes around a site now also give lots of options for deccor and fry hides, all 100% safe too.

 

[Yazan]

What are those things and what do they do?

 

[raptorrex]

What are those things and what do they do?

a breeze block, is a basic concreat block, used, mostly for the inside half of a house wall. though you do see basic sheds and buildings made with them.
http/www.thefreedictionary.com/breeze%20block

 

[Yazan]

But how do you use them in your tank/

 

[mark.w.jones]

You shouldn't, that's the point. They're so ugly its untrue and I have no idea why anyone in their right mind would want one in their fish tank.

 

[Fishy_7]

Go the whole hog and tip a load of hardcore into the tank

Just messin ...

 

[andywg]

no they are not safe.
they are made primarily from cement and that will create havoc with your water params.
then there are the bonding chemicals that will do who knows what to the health of the fish.

Hmm, possibly so, possibly not.

Cement is one of the two ingredients in home made Live Rock. The cement is left to "cure" in water that is changed every so often until the cement no longer adjusts the pH. The cement is mixed with either aggregate or coal cinders. I would be wary of coal cinders, but if it is with aggregate (I understand this is more common now) then it should be possible to cure teh cement until it won't affect the pH.

As to why one would want breeze blocks in the tank rather than under it as a stand...

 

[raptorrex]

no they are not safe.
they are made primarily from cement and that will create havoc with your water params.
then there are the bonding chemicals that will do who knows what to the health of the fish.

Hmm, possibly so, possibly not.

Cement is one of the two ingredients in home made Live Rock. The cement is left to "cure" in water that is changed every so often until the cement no longer adjusts the pH. The cement is mixed with either aggregate or coal cinders. I would be wary of coal cinders, but if it is with aggregate (I understand this is more common now) then it should be possible to cure teh cement until it won't affect the pH.

As to why one would want breeze blocks in the tank rather than under it as a stand...

my guess is you may well be right! though that assumes the blocks are of top quality! not often the case, even with today's incredibly stupid house prices. and comments like this:

Raise alkalinity by adding Calcium Carbonate, concrete blocks, oyster shells, limestone, or even egg shells. To raise the alkalinity by 40 ppm, add 1/2 oz of Calcium Carbonate (precipitate powder) per 100 gallons of water. A bag of oyster shells or even a concrete block or two (not cinder block) submerged in the pond or filter area may be all that is needed.

taken from, http/koiclubsandiego.org/library/alkalinity.php

 

[rdd1952]

I worked in construction for years and worked 4 years with a concrete block company and had never heard them called that. Learn something new every day. Concrete does continue to cure as long s it is kept wet. Concrete block, however, are prety much cured out in a matter of days because they dry out so there wouldn't be any curing left to do once they were put in the tank.

I don't know that they cement would be the worst problem. The lime that they contain would probably be just as bad as far as the pH was concerned. I'm like everyone else in that I can't imagine why you would want such a thing in your tank.

other than them floating (which can be sorted out)

And last but not least, do you want them to float? I can't see how a concrete block could possibly float.

 

[kewskills]

I worked in construction for years and worked 4 years with a concrete block company and had never heard them called that. Learn something new every day. Concrete does continue to cure as long s it is kept wet. Concrete block, however, are prety much cured out in a matter of days because they dry out so there wouldn't be any curing left to do once they were put in the tank.

I don't know that they cement would be the worst problem. The lime that they contain would probably be just as bad as far as the pH was concerned. I'm like everyone else in that I can't imagine why you would want such a thing in your tank.

other than them floating (which can be sorted out)

And last but not least, do you want them to float? I can't see how a concrete block could possibly float.

called that in UK only as far as im aware. i lived in germany for a while and there not called that there.

 

[adammichael]

there well known to be called breeze blocks in england i dont understand y 1 in a tank itd look crappy n there heavy n theyd probably break the glass

 

[Yazan]

Oh, I know what you mean.

 

[kewskills]

here is a breeze block for those that dont know