can this be used for tanks

[Rivermud]

you can not get any better proof than to show a very sensetive fish living in a tank with your so called deadly silicone. And all I ever asked for was some proof that the stuff hurt fish. If your going to get butt hurt because you can not prove something that you beleive in so strongly. Then i have no idea what to tell you. i am feeding my proof everyday. I guess some people can think for them selves and some can not. this thread is way off topic so I am done. I can provide visual proof any given day to back up my claim. unless someone can provide ANY single peice of proof to say other wise i have nothing to say.

You never had a better idea. When you decide to "read" the replies we'll be happy to continue. The proof you ask for would be hearsay much like your claim to have a tank with these products being used with healthy fish. If you read some of the larger forums stickies you will find people who swear the silicon kept killing their fish and they had to scrap their diy project and redo. However, I am sure you will not READ this, so it's being posted with others in mind. I took a look at your profile and pictures.. The DIY tank is your all glass tank? Sorry for my spepticism but you continually ask for proof without reading replies.. I'd like to sarcastically ask that same of you.

Yes, I can cut and paste. Those were scientific studies done on the make-up of the specific types of silicone we have been discussing. When proving an arguement or case such as ... oh I dunno.. in a court of law, lawyers are asked to cite their resources so that they can be examined. This allows the defense or prosecution to review the accuracy of the study and rebuff it. Research and diligence is required. Bluster and ignorance will simply get you ignored. I cited the resources where I gathered my information. You simply state you've done it. I recommend to the general public reading this thread that they simply buy a "known" good product; that while the "other" product MAY be safe, it is simply safer to just buy the product right next to it in the same aisle that is known to be good and is cheaper. You actually attack me as if I have affronted you. I also think you have it wrong, it is not something I believe in strongly. I believe that people ought to get the best advise possible. You seem to have such a strong opinion on this that you've resorted to just striking back.

Please for the love of god, let the thread die everyone. There is a sticky on this topic. Read the sticky. If the sticky doesn't answer your questions, ask them there. This thread sadly turned into nothing but a place for someone to troll. The best advice you will find in this thread is to:

1. Read the sticky
2. Buy and use known good products as they are quite readilly available and in most cases they are litereally right next to the unproven products on the shelf.

It's not worth the risk when the cost and access is identical.

 

[Iffrat]

well here the GE II is much much cheaper then the fish safe stuff.. but we also have GE I ... which i think most people agree is fish safe but im not to sure .. i have asked the question a few times but never got a answer ..

anyways the GE I and GE II are about 1/3 the cost maybe a little less..

so where i understand how the argument is 100% useless and pointless .. but the question i think is still valid

and if i am wrong ... i am sorry .. its the reason i ask the question .. I DONT KNOW ANY BETTER

i am still new to the fish game.. and took on the building project of a 300 gal ply build

 

[Satan's Goldfish]

I love entertaining reads

To the OP: I had a similar issue not to long ago trying to find the right silicone, spent a good hour in the hardware store reading all the tubes. Eventually found a compound by a company called Cerafix (i don't know if you have them over there) that they called 'Sanitary Silicone Sealant', no mention of anti mould substances and was the only tube that didn't say it wasn't aquarium safe. I do have a picture somewhere but i'm in work atm.

 

[Rivermud]

well here the GE II is much much cheaper then the fish safe stuff.. but we also have GE I ... which i think most people agree is fish safe but im not to sure .. i have asked the question a few times but never got a answer ..

anyways the GE I and GE II are about 1/3 the cost maybe a little less..

so where i understand how the argument is 100% useless and pointless .. but the question i think is still valid

and if i am wrong ... i am sorry .. its the reason i ask the question .. I DONT KNOW ANY BETTER

i am still new to the fish game.. and took on the building project of a 300 gal ply build

Only posting in here to answer this question. I answered his questions long ago as cvermuelen pointed out. Anyway yes and no. Both Silicon and SiliconII now can have a label on them stating either BIOSEAL (brandname) or some antifungal or anti mildew message. Earlier in the thread I was pointing out that there are SiliconII's without said label. Silicon (Regular good ol GE Silicon with no addatives or curing compounds) should be just fine. SiliconII that is not labeled as antifungal or mildew or without the BIOSEAL label should be just fine as well.

These products are available in tubes from any home improvement store. The advice I offer is to read the label. If it's Silicon and does not state anything about BIOSEAL or mildew/fungus, it is most likely just fine. Color does not really affect this. You may find SiliconII without these labels as well. While this may not have the bonding properties of silicon, it should still be relatively safe for aquarium use.

There is no need to buy the miniature tubes of silicon that state "aquarium" on them. These are sold this way as a marketing technique. The company submits a sample of silicon and has it certified. They then place a label with the certification on a very small tube and mark up the price. It's the same 100% silicon they put in the other tubes. Sadly a lot of Silicon tubes have something on their label stating that they are not recommended for use in aquariums, this is probably what causes this question to be thrown out there so much. Just remember: 100% silicon Type 1 without any label for fungus/mildew/mold should be fine, any mention of anti any of those things, and I would take a step to the left or right and read the next tube; if you find SiliconII without any labels, it's probably safe as well. It's just MHO that you might want to spend the extra 5 to 10 minutes in the sealant aisle in Lowes/Home Dumpster reading tubes. Hope that helps.

 

[chefjamesscott]

personally why not just email an aquarium company and ask them if they will sell you black silicone or talk to a local glass company

 

[hybridtheoryd16]

^^^ thats a good idea. I myself have never seen black geI only geII. And i checked again today and my local hardware store only has geII in black. For 100% silicone anyway. They have butyl rubber in black. And asphalt patch in black. But ge is the only silicone.

 

[cvermeulen]

If we're talking hardware store stuff, black might be difficult to find in GEI. I use DOW 732 or 832 personally in black. Stronger than the GE stuff by several times, and will bond to plastic. Same approximate price before shipping from mcmaster.com.

 

[Pharaoh]

I know this is an old one, but I cleaned it up anyway as it is still being link as a useful discussion. Let's keep it a fact-based conversation. If you don't have facts of some nature to contribute, please don't post.

 

[hybridtheoryd16]

after all that tooth and nail fighting to get the truth about BIO seal out in the open.

Now the thread looks as if it talks about nothing but untruthful and bad things about geII silicone.

:lipsseale:WTF:

 

[kallmond]

The problem with this discussion is that you can never scientifically prove a negative.

No one can prove that bio seal doesn't kill fish. Eventually, all fish will die, and people will say "It took bio seal 10 years to kill your goldfish, but it killed it" Or they'll say "Bio seal is fine for 9.5 years, but then it killed the fish".

If we take the assumption that the two types of silicone are usually side by side, the cost is roughly the same, and is no benefit to using the bio seal type in our application, I have to ask why is there a debate? (Other than disproving random internet myths)