Which of these items to go with first 75g?

[kaz]

I thank you for all the kind words regarding my GF, now regarding the UV filter questinos where does the company who makes them get there info about a 14w uv is good with a xp3 flow rate of a 300 to 400 is enough and so on? I've had ick a couple of times, internal parasites etc from my fish through out the years, I do up to 50% of water changes every week and I use prime every time but I cannot pin point where it is coming from or causing this, so UV from what I read sounds like a good weapon to have as just one more tool of prevention. from what i read it kills microbacteria so another question is will it kill the micro stuff that the small red shrimp or ghost shrim feed on thus leaving them without foods?

check this canister filter with uv any comments on this product?
http://www.drsfostersmith.com/produc...3665&subref=AA

[Zezmo]

Look at this article from Dr F&S. It has some good U/V info. According to that article, you need a minimum of 40w to kill parasites (like ich) if your flow rate is 300gph. That article suggests a minimum of 15w UV at 75gph to kill the nasty stuff.
http://www.drsfostersmith.com/pic/ar...id=423&aid=440

Check out these higher wattage UV
http://www.drsfostersmith.com/Produc...&N=2004+113778
That 120w bad boy for $589 will ceratinly knock down anything nasty in the tank.

Most of the lower wattage U/V just prevent green water and reduce algae.
BTW, I mentioned above that I have a 13w twist. When I checked it once I got home, mine is the 18w coral twist. I am running about 100-125gph through it. With it inline to one of my Fluval 303's. This is on a 72g tank.

[kaz]

I saw there article but it says that a 15w needs 300gph to control algae etc but only 100gph to control parasites now my question is which one do I go with a filter that has a 300 or a filter that is 100? or if i get an xp2 or a enhiem ecco is at around 200 or 300gph the 100 use for parasites is fine with a higher ghp, mm dont know if i made any sense.

my first thing is that I'm getting alot of problems with my fish do to parasites and off and on ick, maybe because I do not QT the new comers and striclty place them directly into my main tank. so because of this I wanted to make an extra secure mesure and place a UVS in my tank, but then I thought about reading about new canisters with built in UV and then I started to shop around for what options do i have with a budget in mind. Should I just Buy a UV Twister and hook it up to my xp3, or buy a new canister filter and hook up the UV to that one, or buy a UV and hook it up with a water pump etc. why a new canister when I have one already, because of my wanted stock will possibly make me overstock thus trying to keep things much cleaner etc for them as possible without having to clean up twice a week and to have more filtration in regards of growing bacteria etc. so based on this, this is what I want in the near future, question is what should I get first of all in order:

Fish about $75.00 to 90.00usd
plants about $50.00 to 90.00usd
better lighting system about $130.00 to 145.00usd
greg watson ferts about $40.00 to 50.00usd
UVS about $130.00usd
Extra canister about $70.00 to 130.00usd

based on this what do you guys think I should start first with most necessities first.

[Zezmo]

The lower the water flow through the UV the better. Lower flow means the UV shines on a particular bit of water longer, and kills more stuff. This is one of those few times where less flow is what you want.

Does that make it clearer?