We will tell you how you should design your sump filter that can be rectangular or square, we will also tell you what materials you must put so that the water is super crystalline, in the case of mine it will have wadding or perlon, sponge, beads or matrix, zeolite, activated carbon and Vegetable carbon. Also I will tell you the one that I will use which is an aerial sump filter or Wet-Dry Sky that will be at the top of the aquarium where it will have an algae trap and UV light. Buy Premium Lyophilized food of the GunKan Brand in this link they will receive an automatic discount and maybe they will even give you the shipment. https://listado.mercadolibre.com.mx/_... https://www.amazon.com.mx/s?me=A2MGAA... Buy your Air Sump Filter or Wet-Dry Sky in Aquariums Nico dials the following phones: 55 6074 9039 and 55-1695-6067 Or visit it in Mercado Mixhuca in premises 48 and 49 because of the contingency they only open on even days, that is, 2,4,6,8 and so in addition to 8a.m. at 3p.m. You can follow them on Facebook:   / acuariosnico   Subscribe to the Nico Aquarium Channel:    / @acuariosnico   Subscribe to the brother channel and my personal blog THE SIDE B OF THE AQUARIUMS:    / @elladobdelosacuarios   Follow me on Facebook   / chars-fishers-125424861484025   follow me on Instagram https://www.instagram.com/invites/con... For any contact to make a video or a company or sponsor send me an email to: [email protected]