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DIY Show us what you've made! Questions, tips and guides on how to do it all yourself!

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Old 01-30-2017, 06:50 PM   #11
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Originally Posted by carl View Post
Use aquarium silicon only, do use the stuff from Home Depot as it will kill your fish. If you can't find it in a store I sell it
This is totally untrue. GE silicone I for windows and doors will not kill fish. As well, Rona and Home Hardware have house brands that are aquarium safe.

Last edited by BillD; 01-30-2017 at 06:54 PM..
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Old 01-30-2017, 09:38 PM   #12
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Default silicone

I have used ge 1 silicone from home depot , in my tanks and my sumps with no ill affect .
90 gallon reef ready tank ...

hippo tang , yellow tang, 1 damsel ,flame hawk (favorite ),watchman goby ,harlequin star fish (hides boring ) bi -color blenny,cleaner wrasse , bengai cardinal,twin spot goby, mandarin .
sand sifting star fish ,
elusive marine betta(MIA - shows him self periodically -boring )

in progress TBA.....project tranquility ............

90 gallon dual drilled tank with sump
vertex 100-in
2 - evergrow leds ,dual t5 48" aquatic life fixture
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Old 01-30-2017, 11:26 PM   #13
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Hi Planter,

I just finished a new hardscape and want to echo what everyone has already said.

I have black lava rock acting as a wall between two substrates with manzanita secured to the top of the rock.

To secure the rock to the bottom of the tank I used Marineland Silicone from's $10.99 and I have lots left over. Those rocks aren't going anywhere.

To secure the wood to the porous lava rock, I drilled some pilot holes in the wood and used the Instant Ocean Aquarium Epoxy in Gray from Big Al's for 16.99. It comes in green and red too. I had better success kneading the putty for 2 minutes rather than one. It kind of stinks like a hair salon. I let both cure for 48 hours before adding water.

If you are making crazy bridges or anything, there is a product called E Marco 400 which is a cement.

Might be worth looking into whether it would be suitable for dragonstone?

Have also read lots of people who use the epoxy/superglue combo (only cyanoacrylate is aquarium safe) Gorilla glue makes a gel as well as the regular glue.

HTH and have fun!

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Old 01-30-2017, 11:28 PM   #14
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Thanks Jackie
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