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    …components allow you to customize the top around rim-mounted equipment such as lights, filters, and returns. Each net top is secured with Red Sea's custom mounting tabs that are very sleek and securely keep your top from falling into the aquarium.  Great for all open top tanks Extra strong aluminum…

    Starting at:
    $50.00

    Why does BRS recommend this? Bulk Reef Supply tried many different water level switches and auto top off solutions before giving the Tunze 3155 Osmolater Universal Auto Top Off BRS Recommended status. Despite its higher price this is by far our favorite solution. Spending the extra money on a Tunze…

    $199.99 $159.99

    Top Suspension Clips, which work very well with rimless tanks making suspending the top super easy.   Rimless Kits: Rimless kits come with full-length frame sections to span the total length of the tank to create a single screen top. Only 4 corners are needed to complete a rimless screen net top

    Starting at:
    $37.99

    …screen netting tops if your tank requires multiple. 2' Rimmed kits can make one 2' x 2' net top 3' Rimmed kits can make one 3' x 2' net top 4' Rimmed kits can make two 2' x 2' net tops 5' Rimmed kits can make two 3' x 3' net tops 6' Rimmed kits can make three 2' x 2' net tops   Each kit includes…

    Starting at:
    $37.99

    …unlike glass or acrylic. Clear Netting is is commonly used in several DIY projects like DIY aquarium screen tops. Our clear netting lets about 99% of light though, unlike glass tops which can block up to 30% of light trying to get through.  Screen Frame is available at almost any hardware store,…

    Starting at:
    $11.99

    Top Suspension Clips, which work very well with rimless tanks making suspending the top super easy.   Rimless Kits: Rimless kits come with full-length frame sections to span the total length of the tank to create a single screen top. Only 4 corners are needed to complete a rimless screen net top

    Starting at:
    $37.99

    …for aquariums without sumps. The combination of the sleek overflow box and the innovative dual-optical sensor ATO will help to keep your aquarium topped off and your water crystal clear.    The overflow box easily mounts to any aquarium with its magnetic mount. It acts as a surface skimmer to rid…

    $149.99

    Perfect for circumventing cords or other equipment that may interfere with the installation of your Red Sea DIY Aquarium Screen Top. Each kit includes two sets of zig-zag cutouts, one set that allows for 15mm of clearance and the other gives a gracious 40mm of clearance. Just use the excess framing…

    $6.99

    …screen net top can securely rest upon, where rimless tanks need a simple solution to hold a net top without being a constant distraction.   Innovative Marine produces simple, easy to use clips allowing you to place them on the rim of your rimless tank and suspend your screen net top. When using the…

    Starting at:
    $10.00

    If you need to modify your Red Sea Aquarium Screen Top Kit to fit around a protein skimmer or another large piece of equipment the Universal Cut Out Kit is the perfect solution. The kit includes two external and internal corner adapters, and two pieces of cut out profile that can be trimmed to your…

    $8.99

    …Screen Netting is commonly used in several DIY projects like DIY aquarium screen tops. The black netting has less glare than the traditional clear netting, while still allowing about 99% of light through, unlike glass tops which can block up to 30% of light trying to get through.  Screen Frame is…

    Starting at:
    $11.99

    …through unlike glass or acrylic. Clear Netting is commonly used in several DIY projects like DIY aquarium screen tops. Our clear netting lets about 99% of light through, unlike glass tops which can block up to 30% of light trying to get through.  Screen Frame is available at almost any hardware…

    Starting at:
    $11.99

    …screen netting tops if your tank requires multiple. 2' Rimmed kits can make one 2' x 2' net top 3' Rimmed kits can make one 3' x 2' net top 4' Rimmed kits can make two 2' x 2' net tops 5' Rimmed kits can make two 3' x 3' net tops 6' Rimmed kits can make three 2' x 2' net tops   Each kit includes…

    Starting at:
    $37.99

    Why does BRS recommend this? The Cobalt MJ line of pumps is great for auto top off systems, reactors, or low flow equipment.  These pumps are made in Italy and are much quieter in operation than similar pumps that appear to be identical.  With so many applications the Cobalt MJ pumps have some of…

    $37.99

    DIY Screen Top Component. Used to attach BRS Screen Frame sections together. If you need to make a new top to keep your fish from jumping, replace a couple worn corners, or with a little modification you can even create inverted corners to go around cables and overflows.    Available in: Single…

    $1.59

    …mesh screen tops from Innovative Marine keep your fish in your tank and off the floor. Almost all saltwater fish can jump, and a lot of them will jump at some point. By having a screen net top on your tank will keep your valuable fish from carpet surfing.   Whats Included? 1x Screen Net Top for 30g…

    $49.99 $39.99

    Add additional hangers to support your screen top over longer spans. Compatible with Red Sea Aquarium Screen Top kits. If your top has a long run that sags a slight bit, just add a few Red Sea Aquarium Top Hangers for added support.    What's Included? 4x Red Sea Aquarium Top Hanger Clips

    $6.99

    Window screen frame. Used to create clear netting tops for the aquarium as part of a do-it-yourself project.Sold in 2 Ft, 3 Ft and 4 Ft pieces.

    Starting at:
    $4.49

    …other animals in your aquarium! Innovative Marine DIY Screen Lid Kits fit inside of most rimmed aquariums and by using the Innovative Marine Screen Top Clips, they can be used with rimless aquariums as well. Many fish will jump if they are startled and without a lid covering your tank, they will…

    Starting at:
    $34.99

    …make sure to use Red Sea's original DIY Aquarium Screen Top Replacement Spline. It comes as a single 26' roll of spline and can be trimmed down to the proper dimensions required by your tank. Compatible with all Red Sea DIY Aquarium Screen Top Kits.     What's Included? 26 Feet Net Cover Spline

    $6.99

    Recommended for water applications like level controllers, auto top systems or other aquarium uses Normally closed or normally open (see more) 14” leads (22 gauge wire) M16 straight threading - includes nut and silicon o-ring 5/8" Mounting hole required   Mounts with wires outside of chamber.  …

    $15.99

    Standard Generic Float Switch is great for:   General water level control applications Aquarium top-off applications Humidification/de-humidification applications Hydroponics projects Water features Air conditioning drain pan applications Don’t use in heavy duty applications like sewage pumps. Great…

    $10.99

    Auto Water Change Plus Auto Top Off    Change your reef tank's water automatically with AutoAqua's AWC system. AWC & ATO All-In-One. Water changes are one of the most time-consuming maintenance tasks with saltwater aquariums. There has been plenty of debate over how much water you should change and…

    $209.99

    Build Your Own Auto Top Off System for your aquarium. Perfect for the DIY reefer who likes fun projects and wants to save a few dollars. Assembly requires only basic tools and no soldering. Basic knowledge of electrical wiring required. Aquahub DIY Top-it-Off Kit Premium Kit includes: (2) Aquahub…

    $45.99

    Perfect for controlling your RODI system, top off system, calcium reactor, or other low flow items that use 1/4" tubing. The solenoid valves uses the 24V accessory port found on 1Link modules and the EnergyBar 832.   Solenoid Valve (SV-1) This 24VDC powered, normally-closed (NC), solenoid valve has…

    $29.95

    The Tunze Osmolator Nano 3152 Auto Top Off is designed for smaller tanks, approximately 50 gallons and under. One of the safest ATO’s available. Utilizes a single sensor to monitor water levels and a controller that protects against overdosing. Magnetic holder for sensors up to 10mm or .39". Max…

    $97.46 $77.97

    …hobbyist has many challenges, but none is more annoying than the chore of adding water, every day, to make up for that lost to evaporation (a.k.a. topping off/up). This alone usually makes the automatic top-off (ATO) device the first piece of automation equipment purchased. The ironic flip side of…

    $199.95

    Replacement Santoprene tube for the BRS 2 Part and BRS Top Off Doser.

    $12.99

    …auto top off applications. Our peristaltic pump has a slow, predictable 50 mL per minute flow rate which ensures gradual and subtle changes to water chemistry. Precision two roller design extends pump life and will not back siphon. 24-month warranty offered by Bulk Reef Supply.   BRS Top Off Doser…

    $79.99

    …thick walls.   An auto top off system is one of the first automated devices any reef keeper should have. When water evaporates, the salt is left behind slowly increasing the salinity of the tank. By utilizing an ATO device evaporated water can easily be replenished by the top off unit throughout the…

    $134.99

    …entire tank but does mix well with traditional Reef Saver, and Reef Saver Shelf Rock.   Each piece comes with a flat cut top and the overall shape will vary from piece to piece. The top & bottom of the shelf rock is cut flat then securely attached to the base rock that lets the rock sit up, making a…

    $39.99

    …x 7" Base - 3"  Overall Height - 5"     MarcoRocks Reef Saver Pedestal Dry Live Rock is the perfect start or addition to any reef tank. The natural top pedestal gives you ample space for coral frags, but also provides some shaded areas for corals that may not want full intensity light. Each piece is…

    $39.99