FWIW - if you're interested in setting the plant on a course toward better vitality, the soil it's in is going to trump your best efforts - almost to the point where it doesn't make sense for anyone to invest a lot of time on issues other than the soil until it's a certainty that's going to be fixed. Peat + topsoil doesn't equal good drainage or aeration. An extremely high % of experienced growers would give it a failing grade on both counts; and, even if every other cultural influence was absolutely perfect, the soil is still going to be a huge stumbling block. I can send you to a thread where you can learn all about dealing with excessively water-retentive soils, but even if you fix the water retention the compaction and lack or air in the root zone is still going to be in play.

This thread describes the fastest way to turn a plant around. Give it a look if it seems worth it to you, and see if making the effort i something you want to consider.

Al

Yes, listen to what Al said. Top soil and peat is just about the worst thing you could have your ficus in.

Once you get that sorted out, putting it outside for the summer will help it fill out.

this link is a little more advanced than the one Al just linked (he wrote this one too) but if you read through it, you'll get a better idea of what to use and what not to use when it comes to container soils.

http://forums2.gardenweb.com/discussions/1405347/container-soils-water-movement-and-retention-xiv?n=158

Thanks for the help Al and Dave!

I'll give those links a detailed look, your help very much appreciated. Without a doubt I'll be changing the soil shortly then. I kind of had a hunch the soil may be an issue, so it's nice that the weather has finally warmed up enough to ease the change for the FLF.

Would you recommend re-potting, or potting up? Thanks again for all your help.

Definitely repotting. Potting up would leave the original soil and you wouldn't be able to switch to a fast draining mix.

You don't want to have one type of soil around the inner roots and a completely different type around the outer roots. The outside would be too dry and the inside too wet.