Can anyone suggest an in sump skimmer for me?

[Myka]

I would also suggest you look for something used. Personally, I wouldn't suggest you go down from a Vertex. If you don't want to or can't spend the money on a decent quality skimmer like Vertex or EuroReef that will fit your tank size I would suggest you just use the small Vertex you have now, and save your money until the right deal comes along or you can save up enough money. Imo, if you got a lesser quality but bigger skimmer you wouldn't be any further ahead in actual skimmer capability. Generally, the cheaper the skimmer the greater volume the manufacturer will claim it can function. The better brands will suggest a volume that is much closer to actual ability. However, personally I always practice and suggest to others that you buy a decent quality skimmer that is rated for 50-100% more volume than what your set up is. For instance, I have a EuroReef RS-180 on my 90 gallon reef. I wouldn't want anything less. I would suggest either a Vertex IN-250 or EuroReef RS-250 for your reef, although I'm not totally sure on dimensions for you. Of course something is always better than nothing. Do what you can do, and make the best of it.