3d faux rock background

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Alyssa

Aquarium Advice Regular
Joined
Nov 11, 2011
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51
Location
Chicagoland
It's been a long time coming but tonight I put in the substrate and filled it. (I let the background soak for a day with no substrate first. Ph = tap water Ph (8) after 24 hours. Ammonia 1 ppm.) Rena Filstar xp4 and Aquaclear 70 HOB both primed and started without a hitch. Heater heating, bubbler bubbling. WE HAVE LIFTOFF! :dance:
 

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Added a few plants

I added a few plants over the weekend which seem unaffected by my clumsy cycling efforts. :whistle:
 

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Wow dude I'm so impressed with the background where did u get it or how did you make it I would love one in my Malawi tank
 
Thanks! I'm really delighted with how it turned out. I followed the directions found at Faux Stone Aquarium Background at Ken's Aquariums & Pond

The marine resin was a bit expensive but well worth it IMO. Carving the styrofoam was way more difficult than I anticipated. I broke several heat tools and other sundry things trying to get what I wanted. But in the end all the work was worth it. Only now I am lusting after better lighting... lol. ;)
 
I also created the foreground pieces at the same time with the same process so it would look uniform, and just siliconed them to the floor of the tank. I just have a few mollies in there at the moment but they seem to be really enjoying their new home. :)
 
Thanks I hope to get a six foot tank for Christmas and slowly set that up over time but I think I'm DEFINATLY going to build one of these for the tank where did you buy all the materials and do you have to soak it for an extended period of time before you put it in the tank ? Any tips you could give with your problems building and setting up that's not in the guide ?
 
Thanks Wy! I bought 4 bulbs when I bought the live plants and they are growing like crazy. I think I'll try some more bulbs. I'm looking forward to having some lush growth in there.

Andjak, I bought everything except the marine resin at Lowe's. I bought the marine resin directly from West Marine because I have a store by me but surely there are web sources. Definitely use the exact ones in the instructions, and I strongly recommend you buy the pumps. Here are a few comments about my experience:

1. The foam board is way harder to cut/carve than I expected. There is probably a better tool out there. I bought a heat tool for carving styrofoam from Michael's craft store that lasted about 5 minutes. (it bent and then actually broke and sparked). I tried using a soldering iron that shorted out after 10 minutes. I took a creme brulee torch to it but that was pretty ineffectual :D. In the end I would guess I did 80% of my carving using kitchen knives, 10% using a dremel tool, and 10% miscellaneous things. If you search on my posts you can see pics. Also, the foam stinks a lot when you carve it with heat. My BF says it's not harmful fumes but it still made me nervous.

2. Don't be afraid to experiment. You'll probably have way more board than you need in the end. I siliconed the pieces together where I wanted ledges and caves and such, and I made more foreground pieces than I ended up using. I wanted my mechanicals totally hidden. The heater and the canister's output are behind the wall to the left of center, and there's a space in the background so they are suction cupped to the glass. The canister's uptake is behind the protrusion on the far right. I made that by applying two more pieces the height of the main piece, then carving out from behind until there was only about 1/2" wall left. There are long vertical slits hidden on the edges of that protrusion to accommodate the water flow, and so far that seems to be working nicely. If you mean to do something like that be sure to keep a popsicle stick or something handy when you cement and resin so you keep the openings open.

3. Remember to do the thing in pieces that will go in and out of the tank without too much trouble. Do a LOT of dry fitting. I had to carve one of the pieces pretty substantially - all the way down to the foam - after it was cemented because it didn't fit anymore. Remember that as you add the cement layers the pieces get bigger. It's really easy to lose sight of that when you're working.

4. Always wear gloves when you're working with the cement. I used disposable hospital gloves and they worked fine. The cement is incredibly absorbent and irritating, even when you do the first soupy layer. I liked the gloves especially for the thick layers so I could form the cement with my hands.

5. I had some trouble with the color. I may have done something wrong. I had to add way more than I expected to get the dark color I wanted, even though the bottle said it would color multiple 80 lb bags. Then when I tried using the 'buff' it turned a deep terra cotta color. Perhaps if I had used less of that I would have gotten the tan color I was expecting. In the end I covered that over and settled for a uniform dark.

6. Spray the cemented pieces down with water before you apply additional cement. The dry cement is like a sponge and will just suck all the moisture out of the layer you are applying, leaving you with a lot of grit that will brush right off.

7. Because of the above I was afraid I'd end up needing to buy more resin, which was distressing because it's so expensive. But it doesn't suck into the cement, it just coats nicely. My BF gave me a detailed explanation of why that is. Something something bonding something. :> Anyway, I coated all my stuff and still have roughly 25% left over in both cans. The resin will significantly darken your pieces. I would guess twice as dark. Shine a flashlight all over your pieces to make sure you get every spot. It's easy to miss places, especially if you do caves, etc, like I did. Also, my biggest irritation with the resin process is that between the cheap brushes I used and my cats there is a lot of hair and brush fibers stuck in the resin. It's not super noticeable but it annoys me all the same. If I was doing it again I'd try to find brushes or some applicator that wouldn't shed, and try to do it in a cat-hair free space.

8. I siliconed my pieces into the tank (the second time using the RIGHT silicone :p ) and let that cure for a couple of days. Then I put water in (no substrate) and let that sit for 2 days. Then I took that water out, put in the substrate, and refilled. At that point I started up my mechanicals and began the cycling process.

So far so good! I put 6 mollies in there 3 days ago and they all look fine. This morning there were babies. Oh, mollies. :D

Hope that's helpful!
 

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Looks amazing good job, I did a DIY background this summer. A tip to anyone reading this is to cut it with a steak knife and heat it with a blow dryer. I plan on doing another bg when I get my big tank.
 
Thanks KD! What kind of foam did you use? I don't know if a hair dryer would have affected mine too much. If I do it again I might try to find foam that is easier to work with. Mine was the big board used for insulation.
 
That's what I used aswell, I didn't try to sculpt it with heat I. I used it all over the surface of the foam to blend it and smooth it out a little. Big balls of foam doesn't really appear to nice. It worked well for that. It was a really fun project, although it was very messy and time consuming. I'm one to try to start and finish ASAP so waiting for silicone and everything to cure was a hard pill to swallow but worth it. I have become a big fan of DIY projects and will deffinately be doing another. This is my background, excuse the hang on front filter I'm running it in prep for my 45g bow front I'm waiting to come in.
 
Oooh that's really cool. I bet the fish love getting under those ledges! I agree this project was messy and time consuming and I too had a tough time waiting at certain stages. I said in a different post that I probably would have given up entirely at one point if I didn't have so much money invested. LOL. If I do another one (and I probably will someday) I don't think it will take as long, just because there won't be that hesitance of not being sure about what I am doing.
 
I hear ya there, I was definitely hesitant at first but letting go and just letting my imagination guide me was the best thing about the project, that and my little guy watching the whole time. At one point he was asking about the caulk, then later he comments "you have really nice caulk" I lmao as did the wife. Kids say the funniest things.
 
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