coral
 

 


Plankton


How to grow phytoplankton.

Its cheap and easy and requires only a few minutes. There's other ways to do it, this is just mine.
I use a plastic soda bottle, a short length of airline, a couple of 4mm black plastic threaded adaptors, a plastic jar, and A & B part nutrient and pipettes. Lit with a 15 watt 5000K energy saver lamp on a 12 hour photoperiod. Harvest every 7 days, keeping aside 10% to start a new culture.
step 1
1. A 1 litre system, but it can be easily scaled up .
step 1
2. Drill a 4mm hole in the soda bottle cap.
step 1
3. Drill a 4mm hole in the bottom side of the soda bottle.
step 1
4. Get some 4mm threaded adaptors from Bunnings.
step 1
5. Screw the 4mm threaded adaptors to cap and soda bottle.
step 1
6. Add 100ml of greenwater starter, in this case Tetraselmis sp.
step 1
7. Top up with R.O water and salt mixed to 1.014 specific gravity.
step 1
8. Add 1 ml of nutrient part A.
step 1
9. Add 1 ml of nutrient part B.
step 1
10. Cut a hole in the side of the plastic jar. Invert the soda bottle on top of the jar.
step 1
11. Attach the airline to the pump using a regulator to contol the air flow.
step 1
12. Label with the species of greenwater and date. Light with a daylight coloured lamp.

How to grow zooplankton.

Again Its cheap and easy, there's other ways to do it this is just mine.
In this case it's a rotifer culture, but artemia works as well.
Providing a regular food source, live phytoplankton daily, the rotifer culture can be maintained for many months.
step 1
1.Start with a white  20L bucket, white reflects light.
step 1
2. Fill with R.O water and salt, then mix and aerate with a coarse bubble.
 step 1
3. Check that you've mixed to a specific gravity of 1.014.
 step 1
4. Add a 5000K energy saver lamp on a 12 hour photoperiod.
 step 1
5. Label the culture with a date and add a litre of greenwater.
 step 1
6. Add the rotifer starter culture. Feed live phytoplankton daily. Then harvest the rotifers on demand.