I can't decide between the SunSun-304 and SunSun-303. The 303 has the right size tubing for the heater I want to purchase (I want an inline) but I'm not sure if it will provide enough filtration and circulation for a 72G African Cichlid tank...I like the fact that the 303 does come with the UV light though. Opinions? I guess my other option would be to purchase two SunSun-302's and put inline heaters in both of those, I just wouldn't want to overdo it with the heaters. Would two 200 watt heaters be better or one 300 watt be better? Downside is no UV lights however.. Any and all suggestions appreciated!