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Making a cave

This is a discussion on Making a cave within the DIY Aquarium forums, part of the TFK Resources category; --> Wait, what kind of adhesive or caulk are you using? Aquarium epoxy and silicone are the only ones I know are safe. I know ...

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Old 11-22-2006, 04:22 AM   #11
 
Wait, what kind of adhesive or caulk are you using? Aquarium epoxy and silicone are the only ones I know are safe. I know people have used silicone from hardware stores, but it needs to be silicone with no additives to prevent molds and stuff. I'm paranoid and still prefer to use aquarium silicone. Silicone will not adhere to PVC pipiing too well, but if you sand it to provide a rough surface, then it would adhere better.
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Old 11-22-2006, 01:04 PM   #12
 
It's 100% silicone, but I didn't sand it prior. To be honest I can see now that it's had a night to set that it would look good, but mine looks like crap right now. I don't know if I should continue siliconing more rocks on or if I should scrap it and just go out and but a new PVC pipe. I love the idea and with the black rocks it has a lot of potential, but I don't know that it'd be very durable like this.
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Old 11-22-2006, 03:00 PM   #13
 
It will still adhere to the PVC, but if you don't like it, you can easily peal it off. I know. I tried it also and I, too, think it looks VERY CRAPPY. So I decided not to use it. Using rocks leave large gaps. You can probably mix rocks and sand. The sand would fill in the gaps nicely. I'm planning to redo mine over some day.
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Old 11-22-2006, 03:06 PM   #14
 
Yeah, I think I'm going to scrap this one all together. I've seen the finished result look good in some places online, but this one just isn't panning out. I can tell it could look so good if I could manipulate the silicone/rocks a little easier, but I don't know that it would last in time even.

I'm going to go back to the drawing board, caves will be had eventually!
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Old 11-22-2006, 03:10 PM   #15
 
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Do you have a picture of what you've done so far?
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Old 11-22-2006, 03:20 PM   #16
 
Quote:
Originally Posted by dprUsh83
Yeah, I think I'm going to scrap this one all together. I've seen the finished result look good in some places online, but this one just isn't panning out. I can tell it could look so good if I could manipulate the silicone/rocks a little easier, but I don't know that it would last in time even.

I'm going to go back to the drawing board, caves will be had eventually!
Yeah, I know what you mean. It's funny how projects look magnificent in our heads, until we actually start doing it, then it's a totally different story.
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Old 11-22-2006, 03:37 PM   #17
 
Quote:
Originally Posted by katherine73
Do you have a picture of what you've done so far?
I'll be sure to get a picture before I toss it out.

I figure even a failed project can provide some knowledge for somebody, I hope! :P
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Old 11-22-2006, 03:40 PM   #18
 
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I want to make a cave sometime soon. I've been noticing one of my Goldfish trying to squeeze in these caves I made for my loaches, and sometimes it appears he's stuck! Just a little while ago I had to lift one of the rocks up so he could swim out. PCV pipe would be far too small for a growing goldfish, unless I could find some real wide pipe, and I really like your slate idea eddie, so I think I'm gonna make something similar to that. I have this enormous slate rock that I broke and used for some of my other caves. I still have a nice big chunk of it which I could use for a bigger cave. Only thing is I'm worried about how jagged it is.
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Old 11-22-2006, 03:47 PM   #19
 
It's best to cut the slate tiles instead of breaking them. Slate is fragile and can split and breaking it would create sharp edges.
I've seen someone making slate caves and actually using a Dremmel to round off some edges. It actually made the slate caves more natural. But that's too much work for me. Besides, I would have to buy a Dremmel tool kit anyways and I don't have the funds for it.
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Old 11-26-2006, 07:13 PM   #20
 
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Don't give up on the PVC pipe caves, I have seen some very nice ones made and and they look awesome.

Some key things to remember:
I know it will take more time but smaller rocks make a much better appearance. The size of a dime or smaller is the best I have seen.
If you want to cover a white pvc pipe, use a paint brush and spread the silicone quickly all over and spread sand over the top. This gives a completely covered look for pllacing rocks where you want and not see the pipe.
Also remember to let the cave cure for at least a week. I know it sounds rediculous but with the amounts you can use it can easily have wet spots after a couple days.

There is nothing more satisfying than making it yourself and having your fish love it.
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