Aqua One Co2 Permanent Tester (15019) 1 per pack Easy to replace Replace as needed Genuine Aqua One product We recommend only using Aqua One genuine gravel in their range of aquariums  

Aqua One Plant Weight 6cm (10pk) (23207) These plants weights will ensure both live and fake plants stay in place 10pk 6 per pack Genuine Aqua One part We recommend only using Aqua One genuine ornaments in their range of aquariums