Oh No!!!

[zephyr50]

Hi, I just got a DIY screen kit from Bulk Reef Supply. My tank is only 30 gal, but they come in different sizes. I think the mesh is 1/2". Haven't installed it yet but the don't think the mesh will shade too much due to the density. And it is for aquariums, so you would think... I paid $37 but with shipping etc it adds up. But maybe not to a Watchman Goby. Prevention usually doesn't come cheap. Good luck!

[FishingGoalie]

Ya the fished knocked it about 8 inches i was think velcro but i dont want to stick it to my euro brace.

[kien]

I would recommend making a polypropelene mesh cover, like this. Virtually no light loss. You can get the mesh at BulkReefSupply. Some people have also used a similar material from hardware stores that's like a plastic chicken wire. Definitely don't use the window/door screens that they sell at the hardware stores. Those will definitely restrict too much light.