Plant/Fish Health
The four (4) things all fish need to survive are?
Water, Oxygen, Food, Waste removal
Visual deficiency symptoms related to immobile nutrients first appear in the?
New Growth
An advantage of using aquaponics over traditional methods to grow vegetables is....
Ionized Ammonia has a __________ charge.
Positive Charge
What aquaponics component handles the Nitrogen Cycle?
Biofilter
What are some ways we can solve a high ammonia level?
Eliminate and reduce feeding (stressed fish will not eat during ammonia stress and uneaten feed increases the problem!), 25-50% water change, Monitor dissolved oxygen, Addition of a phosphate fertilizer, Incorporate a biofilter if there is not yet one, Ammonia-binding products will fix the problem short-term.
What are 3 Macronutrients plants need to survive?
Nitrogen, Phosphorus, Potassium.
What is an advantage of an indoor aquaponics system?
Year-round temperature control.
Where does Ammonia come from?
Uneaten fish food & fish waste.
What rate is fish feed fed?
Systems are fed a % of biomass (fish weight) per day. Range is 2%-4% each day. (We use 2%)
True or False: Ammonia is colorless, odorless, and cannot be detected unless you test specifically for it.
True
What is a plant made of?
80 – 90% water (H2O)
10 – 20% dry matter, 96% of dry matter is Carbon (C), Oxygen (O), and Hydrogen (H),
99.2 – 99.6% of the entire plant = C, O, H
0.4 – 0.8% other elements
What are 2 disadvantages of aquaponics?
Aquaponics is Not Suitable for All Crops, High Initial Investment, Technical Knowledge is needed for system success, Not all fish can be grown suitably in an aquaponics system, if one part fails, all parts fail.
If the amount of ammonia is higher than _______ mg/L, then fish gills are being damaged.
If the amount of ammonia is higher than 0.05 mg/L UIA, then fish gills are being damaged.
What does TAN stand for?
•Total Ammonia Nitrogen
•Goal is less than 0.05mg/l Above that, fish are being poisoned.
First in the Nitrogen Cycle, Bacteria converts Ammonia to _________________.
Nitrite
______________ states that production is proportional to the most limiting nutrient – the nutrient with the lowest availability sets the carrying capacity of the ecosystem.
“Law of the Minimum” states that production is proportional to the most limiting nutrient – the nutrient with the lowest availability sets the carrying capacity of the ecosystem.
Aquaponics is a combination of __________ & _________.
Aquaculture and Hydroponics.
Unionized Ammonia is about ______ times more toxic than ionized ammonia.
Unionized Ammonia is about 100 times more toxic than ionized ammonia.
A pH of 7 is considered....
Neutral
Second in the nitrogen cycle, bacteria converts Nitrite to ______________.
Nitrate
Plant Diseases are caused by what?
Deficiency of an essential element.
In Aquaculture, the cost of fish feed can be made up by producing what?
Selling fish for meat.
How to we calculate and measure ammonia?
Total Ammonia Nitrogen, or (TAN) is how we calculate and measure ammonia.
If plant disease symtoms first appeared in old growth, what type of nutrient is unavailable? (Immobile or Mobile)
Mobile Nutrients