I have been to all 3
I live outside of bloomsburg and can say
the site mentioned earlier is a good site, JUdy is a nice lady, who really cares about the hobby and fishes. some of her practices are not exactly my own, but very close(some of our opinions differ slightly)
Ron's is a great place to visit, he and my opinions ar definitely different, he does however have nice tanks,a dn his rock and fish have all been good. I never fear buying in either place
Pet City, good place, nice people and personal friends. However, I would not go there looking for extensive advice, their experience in SW is limited, but gorwing well, Jason(the owners son) does alot of research and will hunt down answers though. He is learnig alot and he is the one who handles the tanks. I have been trying to get him to visit this site, but as of yet he hasn't. I will not talk bad about them, they atually got me into the hobby. In fact, it was a bad attempt at brackish water, where they were trying to help me, that got me into salt(a last ditch attempt at success). We nearly gave up completely. they have some to learn but who doesn't, we all do, and as mentioned they are just recently starting their venture into salt water too. I often talk with the owners son, who handles the tanks, and he and I have helped each other a great deal over the last couple of years. LOL, in fact I recently had to explain to him how to acclimate an anemone, then a short time later, he explained to me about drip acclimation, so it has worked both ways(although not dripping, it still took hours to acclimate, and have lost nothing). Alot has changed in the last couple of years and alot has changed there in the last year or so, in fact, theyir first saltwater tank is not quite a year old yet. And I send many people there, just remind them that they have jsut started sw themselves and should look to books or swf.com or others I know who are in the hobby, before buying or trying anything. Like I have mentioned though, I harbor no animocity(even though my attempt at brackish was not so good), and really like them and purchase alot there. I can go on for hours, if I wanted to, so I wil stop, they have realy taken good care of me, so I return the favor and help advise and do send them some business . Just like any LFS, you should use caution, If you do want good advice based upon experience, come here, go to JUdy's Salt Box, or read.
I would however steer anyone away form the one in Berwick, I can name that place too. And can also say how much I hate that place and why, but won't, if you do go there, take your earplugs, and know yourself what you are getting and why, before giving them any money.
There are a few others semi local and if you are in Bloomsburg, they are closer or as close as Williamsport and Turbotville. Both of which I also like.