Growbed Adjustment

I made an adjustment to the growbed method by putting the leca hydroton  into individual pots. The ebb and flow systems rely on a good flow of water for the bell siphon to work properly. I found out that my current growbed setup water flow became sluggish due to the clogged residue as my fingerlings becomes bigger. The leca hydroton traps suspended solids in the water and eventually disrupt the flow to the siphon bell.
Since I didn't connect the swirl filter to the systems, my only effective filter is the sponge filter which needs to be thrown away regularly at least every 3 days since my 100 fingerlings started to eat more.

 The only setback is there are only several pots spaces available (11) but now the water flow is much better and the siphon works in excellent condition. The fingerlings seemed to be waiting in anticipation of the siphon flow to drain away water back into the barrel drum for them to swim merrily against the surges.