Can i use a pond sealer or paint to coat a metal pot and protect the fish?

[Calvin1]

Hello,

I am wanting to use this pot to create a small water garden with 1-2 small fish.

It is made of aluminium and I have heard that this may affect the health of the fish.

If I paint the inside with a pond sealer / pond paint, would this layer provide some protection? Alternatively, would you have any other suggestions or insights?

Many thanks!

[EricL]

Hello @Calvin1 

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about sealing your metal pot.

I've just been in contact with the Crommelin technical team, and they said that they can't guarantee that the sealer will bind to the side of the aluminium bowl. I did ask "what if the inside of the bowl was sanded down and roughed up?" They said that you could try to do a test patch and if it holds and does not slide off then you can do the entire bowl, but it will still not be covered under the warranty as the sealer could detach from the side of the bowl.

Just in case you were wondering, I was asking about the Crommelin 1L Clear Pond Sealer. I also inquired about the black pond sealer, and they said that the same condition applies and that it will not bind to the aluminium surface.   

Let me call on our experienced members @Dave-1 and @Nailbag for their recommendations.

If you need further assistance, please let us know.

Eric

[Calvin1]

Thanks Eric. 
Appreciate your assistance with this.
Best regards.