Are cone skimmers here to stay or just another marketing trick to get the hobbyist to buy? One company, ATB, has built their entire skimmer range around theÂ cone design and it seems like more and more companies are offering some sort of cone skimmer design. Heck, there is even a patent on the actual cone design which no one seems to really care about and companies continue to produce cones anyways. Deltec has been the exception so far as they haven’t produced a cone design and it doesn’t look like they will be doing so with Master Deltec distributor DD Aquarium went as far as to say that they found cone skimmers to be “distracting” (NSFW) when looking at the design concept several years ago, a hint towards the cone skimmers being a fad trend within the hobby. Scratch H&S off your list too, their designs have remained tried and battle tested and not likely to change. What do you think? Do you think that cone skimmers are a fad or here to stay?