Foaming your Reef tank by Mr Cob

[Mr Cob]

Additional tips and info....

Something to note that he mentioned yesterday and I don't see in here:

This stuff starts to harden fairly quickly, so if you are doing a decent size tank, work in sections, and make sure you keep an eye on it as you continue, this stuff continued to rise for over an hour after initial application.

I let it cure for 5-7 days before I let water touch it....but I have seen people only wait 48hours. It's inert so it does not soak in water or release any toxins. It does nothing for or against a cycle. I do rinse it, but not purposely...when I do a water test it gets rinsed. No need though because it's inert.

Foam is not permanent. It can be removed in the same fashion as removing silicone seems on a tank. Of course it may be difficult and tedious, but it is not permanent. I prefer to foam directly to a tank versus creating mobile structures with eggcrate. I prefer this method because it removes any chance of dead spots and detritus build-up that you might see from a structure not fitting flush against your tank.