Comments: It works just fine, and the all in 1 unit (built in skimmer) is a big plus, easy to remove to clean, and less hose to worry about.

Comments: Setup was fairly easy. The skimmer skims great but takes awhile to get adjusted right. The powerhead doesn't fit very well in the side of skimmer. Once you get those two kinks worked out it's great. The waters skimmed then flows threw the bio bale and filter pad so you get clear water!! NO MICRO BUBBLES!!! Great setup!! A little to pricy though.

Comments: Excellent product!
<br /> I have had numerous CPR products in the past, and each new generation is better. I am upgrading my tank (about 10 yrs. since last upgrade) and this is really an easy install. As far as functionality goes, both the PTN skimer and biofilter are working great. Also, the system is very quiet.
<br /> This would rate a five star if it weren't for two issues. First, the powerhead for the skimmer doesn't have a good union to the skimmer body and took some improvising. Second, the sump volume is really two small, even for my 55 gal. tank.
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Comments: This is perfect for small under tank cabinet space. Seems to be very efficient and a clean setup. I currently have this running on my 30 gal tank. I added live sand and will be putting some chaetomorpha in the return sump area. So far the tank is doing well. Skimmer is also doing it's job and love the fact that it has a skimmer overflow to a larger container. Not so plug and play so read the instructions and their instructional youtube videos. fittings are not perfect so use your plumbing common sense. it's expensive for what it is. you are basically paying for it's compact design which looks good, efficiency and the CPR name. Time will tell if this is as good as a home made sump. So far, I'm happy with this.

Comments: I've had this filter for over 5 yrs on a 110 gallon tank.
<br />Works great, skimmer is doing a good job! I've used a separate skimmer at first ( high quality) but the skimmer that came with this filter worked just as good as a high end one. I have a 6"trigger fish , 5" majestic angel, 6" queen angel, 7" emperator angel, 3" saddleback butterfly, 5"threadfin butterfly,5"powder blue tang and a little hawk fish. I've had these fish for over 5 years with this filter with no problem. I do run a canister filter for carbon and a 55 watt uv sterilizer. I modified the lid and added some plexi glass to raise the sides higher so water wouldn't splash out, I also added a bulk head fitting on the side near the top so that water drains into a jug in case of power failure.

Comments: I give this a 3 star rating because it actually does the job after some modifications. I am using this CY192 on a 90 gallon fish only with an extra CPR BAK PAK for more filtration. CPR says this CY192 filter is good up to 100 gallon tanks? The problem right away is if your power goes out the CY192 continues to take on water due to the overflow box or the interal reef ready box. The CY192's 4 gallon sump will overflow onto your floor because most tanks 75-100 gallon have more water than 4 gallons at the cut off mark from either the overflow box or internal box. So you have to get a bigger sump for this CY192 to work with larger tanks. But once you make the modifications CPR does not tell you to do. Your tank will be super clean visually and healthy enough for some of the less hardy Angel fish like the Majestic or Emperor.
<br />I suggest you double any figures CPR USA Inc. gives you too be on the safe side. They make great products but they exaggerate how much there filters can really take on.

Comments: The Quality of the product is really good. The only thing two things that let me down was, after I had received my package I found out I had to purchase a aqua lifter pump to keep the overflow box in continuous operation and to restart if there was a power failure and the instructions were to vague.

Comments: I've had a salt water tank for over 8 years. So experience is in ample supply. However, I have yet to figure out how to get this system set up. My advice after having purchased this product is to buy everything separtely... the pumps, the protein skimmer, everything! Will it be more expensive? Yes! Quite! But, again: you get what you pay for... 'Protein skimmer may be sub-par'? Are you kidding? It's worthless! And I still cannot for the life of me figure out why they put an air hole on the top of the overflow. How do you start a siphon with an air hole! It's like trying to inflate a tire that has a huge freakin' gash in it! As the Comic Book Guy in the Simpsons would say: WORST PRODUCT EVER!!!! I tried to submit this review but I couldn't until gave it one star, which it does not deserve!

Comments: this sump seems too small in capacity for a 100 gallon tank. I have had to add a second sump to my system

Comments: I think over all it's a great product. I didn't like it at first because I had to do some modification to fit my in wall aquarium the hose was short both the 3/4 return hose and the larger intake hose. The protein skimmer pump keeps comming off so I had to modify that as well, but after I got it going it's been great.