Jbweld to glue rocks in place

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#1
Newbie here. Someone recommended using JB weld epoxy to glue my rocks in place. Wanted to ask the community if
1) is this reefsafe
2) anyone used it before and if so, any comments on the product
3) will this make my skimmer go crazy...


Thanks

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#2
Are the rocks wet or dry? Is the tank currently running or are you still in the building process?
 
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#4
I wouldn’t chance using jb weld in the tank. But you can try reef epoxy putty. But I tried epoxying wet live rocks together years back and it eventually broke off after a few months. Also any epoxy will cause your skimmer to go bananas.
I my self use acrylic rods and super glue gel if the rock is wet. What I do is take an 1/4”acrylic rod and cut a 4-8” piece. Then take the 2 rocks and see how I want to make them stick together. Then take a 3/8” masonry drill bit and drill the hole deep enough to for half of the rod to go into the hole. Then put a shoot of super glue gel in the hole and a nice little glob around the hole. Then put the rod in the holes and glue the rocks together. Then I’ll take a little sand or gravel and sprinkle it over the glue that has popped out of where the rocks meet. Yes the rocks will need to be out of the tank to do this.
This is how I did my center rock piece
 
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#5
I wouldn’t chance using jb weld in the tank. But you can try reef epoxy putty. But I tried epoxying wet live rocks together years back and it eventually broke off after a few months. Also any epoxy will cause your skimmer to go bananas.
I my self use acrylic rods and super glue gel if the rock is wet. What I do is take an 1/4”acrylic rod and cut a 4-8” piece. Then take the 2 rocks and see how I want to make them stick together. Then take a 3/8” masonry drill bit and drill the hole deep enough to for half of the rod to go into the hole. Then put a shoot of super glue gel in the hole and a nice little glob around the hole. Then put the rod in the holes and glue the rocks together. Then I’ll take a little sand or gravel and sprinkle it over the glue that has popped out of where the rocks meet. Yes the rocks will need to be out of the tank to do this.
This is how I did my center rock piece
 
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#6
I wouldn’t chance using jb weld in the tank. But you can try reef epoxy putty. But I tried epoxying wet live rocks together years back and it eventually broke off after a few months. Also any epoxy will cause your skimmer to go bananas.
I my self use acrylic rods and super glue gel if the rock is wet. What I do is take an 1/4”acrylic rod and cut a 4-8” piece. Then take the 2 rocks and see how I want to make them stick together. Then take a 3/8” masonry drill bit and drill the hole deep enough to for half of the rod to go into the hole. Then put a shoot of super glue gel in the hole and a nice little glob around the hole. Then put the rod in the holes and glue the rocks together. Then I’ll take a little sand or gravel and sprinkle it over the glue that has popped out of where the rocks meet. Yes the rocks will need to be out of the tank to do this.
This is how I did my center rock piece
 
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#7
Thanks for the advise. Will go ahead and try that...

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Smite

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#8
If you’re talking about Jb water weld you’re good to go. I’m convinced it’s reef puddy minus the purple or red coloration.
It states it’s safe for potable water containers on the package. If it’s good for human consumption I’d say you’re safe.
I use it anytime I need to adhere a colony to rock work. It’s come in direct contact with sps with no ill effect. I would not trust it for mending large scapes.
In small amounts your skimmer won’t go crazy in my experience.
 
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#9
If you’re talking about Jb water weld you’re good to go. I’m convinced it’s reef puddy minus the purple or red coloration.
It states it’s safe for potable water containers on the package. If it’s good for human consumption I’d say you’re safe.
I use it anytime I need to adhere a colony to rock work. It’s come in direct contact with sps with no ill effect. I would not trust it for mending large scapes.
In small amounts your skimmer won’t go crazy in my experience.
Yep I’ve used water weld for years and never had an issue


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