2x Bond It Clear HA6 RTV Silicone Sealant Marine Aquarium Safe Water Fish Tank

Used to seal a vivarium. Used previously on other projects durable non cracking. Permanent water proof seals non toxic to reptiles ( never affected our bearded dragons) quality product and a good value

I bought this for a 10ft outdoor tank that my aquatic turtle lives in. The tank had started leaking and I was hoping this would help seal the small leak in one corner. I found it very difficult to use but I think all marine sealants are. After persevering I filled the gap after lining a bit stretch of where the glass panels meet. It's probably my lack of skills, but the repair only lasted a few weeks. I then tried a different marine sealant which has lasted for over three months now. I wouldn't buy this again for my outdoor tank.

I wanted to seal a couple of areas that were letting in water. I never had a lot of luck with marine sealants as they always breakdown after a while and go powdery. So I thought I would give this aquarium sealant a go. If it works in seawater it must be good.Well this stuff is amazing. No more leaks (which is always good on a boat) and easy to apply. The best bit it’s flexible and quarter of the price.

One tube slip leaking silicone everywhere 1st tube was brilliant second tube must of been faluty

I used this product primarily for the fact it does not have any bacteria, mould resisting properties included in its composition. The reason being I required a product without those qualities for a sump I had put together for a marine fish tank. Some silicon sealants cure too slowly this one however did not, from application to curing took initially about 5 minutes. At this point the Silicon held the glass panels in place. I also noticed that there was no bubbles forming in the silicon, and the silicon was clear in colour without any yellow tinge.I have since tested the silicon for its ability to hold and seal when filling my sump up with water 48 hours later and can confirm that it holds steadfast and does not leak. I would recommend this product to anyone planning on carrying out work involving an aquarium or pond.

I’m going to be using the item for a project I’m glad that I was able to order there try to order on eBay but the seller refused to have it delivered to my address

Great stuff use it all the time for making fish aquariums or fixing leaks

The main feature required was that it was "pond safe" I have a raised pond in which I needed to control max level. This product seemed ideal, and at the moment is doing the job as well as I could wish for. Tomr