Oh, Jameson ???? Nice !!!! My kinda people lol. I'm not familiar with Sunsun products. I run all Fluval canisters on my tanks but it's just a preference thing.
I'd definitely get at least two, maybe three (I'll double check what others say) just to be safe as thats a good size tank. You don't want to run out in the middle of this project. You may also want to pick up one of these http://m.homedepot.com/p/DAP-PRO-Cau...125/100666143/
to help spread the sealant. I used it a couple times but eventually wound up using a finger in the last one.
Hopefully the fiancé doesn't kill you. You've got a bit of work ahead of you and I want to see results, lol.
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