
Nice to get a rough estimate of CO2 levels, the PH check could be pita but it works great. You can try a blackout solution, but for now it's not necessary. If there is algae on it, simply remove the suction cup (you can leave it in warm water to soften it) and then soak the jar a little in a bleach solution, rinse and refill.

π Seachem Stability 250ml: The Ultimate Fish Tank Stabilizer for Freshwater and Marine Aquariums
9 Review

Fish Water Quality API Test Kit
9 Review

Highly Efficient Seachem Purigen for Freshwater & Saltwater Filtration
9 Review

FUNSWTM 7 in 1 Aquarium Test Strips: Accurate Water Testing for pH, Nitrite, Nitrate, Chlorine, GH & KH Levels
8 Review

Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review

Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review

Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review

π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review