Add just enough to get the ammonia test reading about a 2 or 3. Then run the aquarium. It doesn't take much to raise your ammonia levels.
EcoBio-Block Stone: Natural Water Clarifier & Odor Remover for Aquariums (Medium) - Treats 15-40 Gallons Efficiently
10 Review
Tetra AquaSafe tap water treatment agent, 5 l
11 Review
Omega-3 caps, 1000 mg, 100 pcs, 1 pack, neutral
34 Review
π API Stress Coat Water Conditioner | Tap Water Safe, Repairs Fish's Protective Coat, Use for Water Changes, Adding Fish, and Injuries
9 Review