Thank you.That looks great...amazing color.
When I built my undergravel compartment from eggcrate, there are no adapters for plumbing. Flow under eggcrate is provided by a 1/2” pvc manifold made into a rectangle to support the weight of substrate. Small 1/8” holes were evenly spaced and drilled. Fifty years ago, Paul used dolomite. I used 2” of aroggonite. I see no reason for dsb. Yes, I operated a Jaubert Plenum dsb for 25 years. In those days we were told nitrate was bad. Even with heavy feeding, I regularly add ammonia to my system. My systems all thrive on ammonia addittion. I feel that I am removing phosphate from system by encouraging biomass growth with nitrogen addittion.What are you using to drive your reverse under gravel filter? I ran them in freshwater about 20 years ago, but now I can't find any power heads with the right adapters. I think you and Paul B. are the only people still using them. If I remember correctly Paul is using dolomite gravel much deeper than you are.
I looked at your build thread. Kudos to you. For me, it is a joy to see children brought into the reefing community. More importantly, as quality family time to share the beauty of the undersea word which never ceases to amaze me. We nurture what we love.Looking really good!
@Paul B and I both started reefing in 1971. He uses a protein skimmer, I don’t. A recent friend @Lasse uses a protein skimmer, then pumps skimmate into Plenum. I don’t use anything on my pump suction. If it is in the water, it goes into the cryptic Plenum. I expect cryptic sponges to proliferate there. However, I also have a cryptic refugium for that.Back when I ran a reverse flow system I pre-filtered the water with a sponge on the powerhead intake. Do you like it without. (Not speaking of aesthetics here.)
Seemed to work well back then...seems like a "dirty" sponge could be a potential browsing station in a reef tank.
Trying to recall how @Paul B had been feeding his old #rfugf...was it from the ATS?