Quote Originally Posted by hungba View Post
I have some silicone sealant that says aquarium safe, so you just smear it over the putty area? That will make it safe/sealed off?

Sorry again about the fish idea, don't know what got into me, too excited I guess.
I've never worked with any sealant that isn't made specifically for aquariums, so I can't be sure. And no worries ahaha it's just unlikely that it would even work, since the ammonia is definitely more likely to be the first thing to kill them.