#dyingfish #help #neontetra

hi everyone, i just got 7 new neon tetras for my 20 gallon long planted tank yesterday evening, and this morning i have two left. parameters: ph: 7 ammonia: 0 nitrite: 0 nitrate: 5 heated to 79°F, has an air stone and filter rated for 30g. tankmates are 2 mystery snails and 20+ ghost shrimp...