be easily removed in the lower tank 10) Changing of water in top tank is not require 11) Cut down cost on salt due to NO splasing water droplet cause by airpump, as air stone usually create air bubble that will mess up the exterior of the fish tank with salt. 12) Very suitable for those busy people who have no time at all to maintain their tank yet love to keep one at home 13) Waterpump will NOT run dry when partial change of water is in progress 14) Easy to maintain 15) Simplified …