adding baffles to a glass tank

For my sump I just used silicon to glue in a couple of acrylic baffles.  Since silicon doesn't grip well to acrylic I made the baffles about 2 inches too wide, and then bent the acrylic at right angles about 1 inch on each side to increase to surface area and add strength to the bond.

To make baffles removeable in a acrylic sump I made I took 4 narrow pieces of arcylic and glued 2 on each side of the sump parallel to the sides with a channel the thickness of the baffle to be able to slide baffles in and out.  It works pretty well, but the rim on a glass tank will get in the way unless you put in spaces to move the baffles away from the glass some.

Andrew

It will hold good enough for baffles.  That's all I did.

Silicone always worked for me. Just get more then you think you need and use it all. Make sure that everything is dry and clean and it should hold fine.

I am interested in making a sump/refugium from a glass tank similar to what is described here. Where do you get acrylic baffles?

Thanks for the info. I live in Sandy and the Home Depot is just down the street.

You can also take your tank to Marine Aquatics and have Eric baffle it for you, that's what I did.  That way you know it will be done right and he can make it custom to accomadate whatever pump, skimmer. and plumbing you will be using.  No worries about cutting acrylic and how to silicon it in.  He can also drill it for a float switch and add a piece of acrylic for a filter sock.  Once you factor in the costs of materials and time to do it yourself, it's more economical to have someone that's done it a bunch of times to do it for you; at least it was for me.

I am picking it up tomorrow so I don't have an exact price yet but he quoted me $50-$60 for a 3-chamber.  I have been looking for a pic of one of Eric's sumps to show what the acrylic sock hanger looks like but I haven't found one.  When I pick it up I can take some pics to give you a visual of how it works.