System Update - 6th April 2012

7:30 am
Water Chemistry
Ammonia: 0.5 mg/l
Nitrite: 0.5 mg/l
pH: 7.0

Feed Given
Tilapia: 1 teaspoon
Guppy: 1/3 of usual feed
Pleco: 1/3 teaspoon

found 1 dead tilapia...


5:30 pm
Water Chemistry
Ammonia: 0.5 mg/l
Nitrite: 0.5 mg/l
Nitrate: 25 mg/l (dropped due to water change)

Feed Given
Tilapia: 2 teaspoons + 1 caterpillar
Guppy: 1/2 of usual feed
Pleco: 1/2 teaspoon



Number of tilapias left : 97

I don't think feeding them is the main cause of the ammonia and nitrite levels. Most of the ammonia probably came from their gills anyway. The water had become less foamy now and smells less "fishy". I guess the existing bacteria in the growbed is handling the situation well. I'll be increasing their feed slowly to speed up cycling as long as ammonia or nitrites don't go over 1.0.