silicon on tank question

[divy]

the glass is broken on one of my tanks that i was going to use as a grow out tank, im going to replace it and i mwas just wondering if i can use normal silicon?

if not why?

cheers

[brettc777]

I have used normal silicone before and it hasnt harmed fish, However these were cheap fish... if i were to fix up a tank i would use silicone that is recommended for tanks... i think shellys make one that is written on the bottle 'ok for aquariums' its in a light blue container and isnt much dearer then your normal silicone.

[Callatya]

As above There is a specific type of silicon you need. Most have added mould inhibitors, and you don't want these in your tank. There is a Selleys one that specifically states "safe for use on aquariums", so grab that one :D

[jusdeb]

Im looking at the tube now and its called Selleys glass silicone sealant for windows and aquariums , it cost about $9.00 from mitre ten for 75 g. Directions for tanks are .....allow to cure fully for 7 days prior to use . thoroughly wash out with water and refill before use suitable for construction and repair of small aquariums specialist required for large tanks...contact Selleys. Hope that helps. Oh has a nozzle thing with it . Also comes in big cylinder for about $2.00 more but you need a gun thingy to use it.

[y2jdaze]

yep that's the stuff I use, it's right here in my hand! I got mine from bunnings.

[brettc777]

yeah i get mine from bunnings... they seem to be a couple of dollars cheaper then anywhere else.

[Robbies Betta]

also, the aquarium one everyone's mentioned would give you SOOO much more peace of mind knowing that there's no way any chemicals will "seep/erode" off the normal silicone and into the water :)