Connecting my sump to the tank.

[2Quills]

What's the downside of using a mesh wire inside your overflow to prevent critters from getting in?

It's probably not a good idea to use any metals in your tank that aren't recommended for aquarium use. They will leach trace metals into your system which is never a good thing. I've seen lots of people cover their overflows using nothing more than egg crate/light diffuser. It's a plastic material and won't harm your system.

[ErikH]

You can use the plastic stuff that people make bingo bags with..... It's just a plastic grid that you can easily cut to fit your application. You could come by my house if you want to see my 200 in action. My number is in my signature, and I am home most times.

[hclchicken]

Is this a decent RO system for aquarium and drinking water? I was going to keep using brita, but might as well use both in one.

http://www.bulkreefsupply.com/store/...tem-no-di.html

[tebstan]

Is this a decent RO system for aquarium and drinking water?

Not familiar with RO systems... but RO tastes funny as drinking water IMO. Curious to hear if anyone else drinks from their RO systems?

You can use the plastic stuff that people make bingo bags with

What's this? And what's a bingo bag?