I like that silicon air line tubing. Very flexible.
I had a lot of trouble getting phyto to grow until I started bleaching the water and the bottles I am using. Here is what I do now:
I mix up 20 ppt salt in tap water in a 5 gallon bucket. I siphon that to fill rinsed out soda bottles about 2/3 full. I can set up about 12-15 at a time. I add 8 drops of bleach to each bottle, cap and shake and store them on the second shelf until needed.
Each day I take a bottle of stored salt water, add 16 drops of BioSafe or dechlorinator, cap and shake. I add 14 drops Micro Algae Grow from Florida Aqua Farms. Then I take my darkest bottle of Nannochloropsis, remove the soft airling tubing from the rigid one that goes in the bottle, and fill up the last third of the dechlorinated, fertilized saltwater bottle, thus innoculating it. I have been transfering the rigid tubing/cap from the used bottle of nanno to the fresh one, and that seems to be OK. If I drop it, or otherwise think it needs cleaning, I can use some rigid tubing for the fresh nanno that I keep soaking in the green bottle on the second shelf. It has bleach water in it, so I have to dechlorinate before I use it.
Any way, the ripe bottle of nanno that I have just taken off line, can be used to feed rotifers.
My plan is to grow the rotifers until I have 4 gallon jugs of 200 rots/ml. Then, each day, take one gallon off to feed the clownfish larvae, and set a new jug up with a quart of rotifers from each of the 3 rotifer jugs left, topping each jug up with a quart of phyto, and re-attach the airlines. In this way, each jug will have 25% harvested from it, fresh phyto each day, and should replace the rotifers harvested with no problem.
That is why I have so many phtoplankton bottles. By the time the clownfish hatch, I want to have 14 bottles handy, 2 for each day that the clownfish larvae are going to need rotifers. I can only fit 10 bottles on my shelves, so I am keeping 4 extra bottles of phyto in the fridge to use as needed.
Sound like a plan?
Cheers,
Kathy