Yo
@thatmanMIKEson nice to meet you man

And yessir we've heard that from a few clients. Nothing at all wrong with DIY screens. They do a great job actually for many clients, but yes they are made of aluminum and although they are water and corrosion resistant, there's not really a piece of metal that you can have saltwater on 24/7 that will not potentially leech something over time. That's just what clients smarter than us have said (a few are chemists or in manufacturing).
Sure man if you send over your tank type I can shoot over some examples pics here. Otherwise we have a large gallery on our website toplids.com
Talk with ya soon brother