I'm heading to home depot tomorrow to purchase pvc elbows for my qt and tt buckets. I also need to get some type of cover for the tank/buckets (especially since they are wrasses), I know I've read to use "egg crates" but I seriously have no idea what is meant by that; is it reffering to flourescent light covers? Is there an alternative that is recommended or is that the best option? Cheaper is always better here 
Also, should I do the TT for the wrasses (a carpenter flasher and a red velvet fairy wrasse) by keeping them together or should I give them each their own bucket?
Also, should I do the TT for the wrasses (a carpenter flasher and a red velvet fairy wrasse) by keeping them together or should I give them each their own bucket?