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I would use eggcrate, that's the best option. It allows air/gas exchange at the surface and keeps all inhabitants where they should be.
I've learned my lesson at this point. I was tired of losing wrasses and such...always thinking, I would be the lucky one and my wrasses wouldn't jump out...3...
At my last job, they had a clown trigger that was about 8" long.
It got a hold of my finger...It wasn't all that pleasant. Their teeth are pretty jagged.
My old clownfish would constantly bite me whenever I put my hand in the tank, it loved to bite me right between my fingers...didn't hurt...
I am friends with a professional photographer that said she was interested in holding a "class". To show us the basics of photography.
I can reach out to her again, although she might be getting busy now that wedding season is in full swing.
The evaporation will help cool your water, I would lose the glass tops.
That's essentially what the fans do over a sump. It promotes evaporation.
I don't know of anything that would turn on a fan when the water temp. reaches a certain point (other than an Aquacontroller). You can buy a...
I'm kind of reiterating what John said but, Dripping Kalk in that small of a system is dangerous at best. With a small demand for calcium I would think that your corals could pull all the calcium they need out of the salt mix through small water changes.