Cal Aqua Labs

CAL AQUA's Double Counter functions as both a normal-flow and high-flow bubble counter in one elegant design. Normal-Flow Configuration: For small to medium sized aquariums where CO2 bubble rates are...

The Double Counter ER functions exactly the same as the original Double Counter but has an external port for quick and easy filling. Over time, water level inside bubble counters will evaporate due...

Cal Aqua Labs' PEARL is a dual-compartment CO2 checker that allows the user to accurately compare the CO2 level in your aquarium side-by-side against a standard reference. The unique space-saving...

Cal Aqua Labs' Double Check series is the only all-glass dual-compartment CO2 checker that allows the user to accurately compare the CO2 level in your aquarium side-by-side against a standard...

CAL AQUA LAB's Oracle is designed with elegance and exceptional functionality. Unique to the Oracle is a small white column at the center of the solution chamber. The white background of this column...

CAL AQUA LAB's Nano drop checker is designed specifically small or nano planted aquariums. Measuring approximately 3 x 3 cm, it is small enough to appear unobtrusive, yet large enough to provide a...

Cal Aqua Labs' CLIP is the first CO2 checker that can be mounted or hung on all four sides of the aquarium, allowing greater flexibility in the device's placement within the aquarium. It's low visual...

Cal Aqua Labs' Clip nano is designed specifically for hanging on the aquarium rim. It's low visual profile minimizes distraction from your aquascape. Provides unsurpassed clarity and minimizes the...

60 ml. Reference refill solution for use with CAL AQUA LABS's dual chamber CO2 checkers. The reference solution is calibrated to 30 ppm CO2. Easy to use, no mixing required. Simply open cap and fill...

One replacement suction cup and silicone plug for Cal Aqua Labs Pearl CO2 Drop Checker

One replacement suction cup and silicone plug for Cal Aqua Labs Oracle CO2 Drop Checker

Pack of 2 replacement suction cups for all Cal Aqua Labs drop checkers and filter pipes.

One replacement suction cup and silicone plug for Cal Aqua Labs Double Check CO2 Drop Checker

Cal Aqua Labs Multi-R - Aquarium Substrate Enhancer (granular root tabs for aquariums) The Cal Aqua Labs Multi-R, substrate enhancer / granular root tabs, provides a slow release of micronutrients...

Cal Aqua Labs Substrex - Aquarium Substrate Clarifier The Cal Aqua Labs Substrex, is a long term substrate additive that improves the clarity of your planted aquarium, and reduces any clouding of...

X1 INFLOW: Designed for aquariums approximately 15 - 25 cm (6 - 10 in) in height which use a canister filter with 1/2" diameter tubing. The Influx pipe carries water from the aquarium down to the...

The Influx X1s is a shorter version of the Influx X1 specially designed to accommodate aquariums with tall aquascapes. It is suitable for aquariums approximately 15 - 25 cm (6 - 10 in) in height with...

The Influx X2 has a 13 mm tube diameter for 1/2" tubing and contains uniquely-placed multiple narrow slits spanning a longer length for more uniform flow across the water column. The width between...

The Influx X2s is a shorter version of the Influx X2 specially designed to accommodate aquariums with tall aquascapes. The straight portion of the slitted side is approximately 12 cm in length. It...

With a total length of approximately 35cm, the Influx X3 is one of the longest glass inflow pipes on the market. It has a 17 mm tube diameter for 5/8" (16mm ID) tubing and holds two suction cups for...

The Influx X3s is a shorter version of the Influx X3 specially designed to accommodate aquariums with tall aquascapes. It has a 17 mm tube diameter for 5/8" (16mm ID) tubing and holds two suction...

Designed for aquariums approximately 15 - 25 cm (6 - 10 in) in height which use a canister filter with 1/2" diameter tubing. The outflow has an upward funnel shape which gently releases water into...

Designed for aquariums approximately 20 gallons and larger which use a canister filter with 1/2" diameter tubing. The outflow has an upward funnel shape which gently releases water into your aquarium...

Designed for aquariums approximately 30 gallons and larger which use a canister filter with 5/8" diameter tubing. The width between the arch is approximately 6 cm.The outflow has an upward funnel...

Designed for aquariums approximately 20 gallons and larger which use a canister filter with 1/2" diameter tubing. Cal Aqua Labs glassware is hand-blown using only the highest quality,...

Designed for aquariums approximately 30 gallons and larger which use a canister filter with 5/8" diameter tubing. Cal Aqua Labs glassware is hand-blown using only the highest quality,...

Designed for aquariums approximately 20 gallons and larger which use a canister filter with 1/2" diameter tubing. Cal Aqua Labs glassware is hand-blown using only the highest quality,...

Designed for aquariums approximately 30 gallons and larger which use a canister filter with 5/8" diameter tubing. Cal Aqua Labs glassware is hand-blown using only the highest quality,...