Yesterday was cleaning day at the reef, every 6 months I aspire all substrate to remove organic matter compressed, also aspire the live rock to remove the dust in first week hope 150 liters of water and dirty and play outside and with a full newly collected water, and after some days I repeat the operation.
I know I should not poke the substrate, because we have bacteria that can not be exposed to the oxygen of water, but I always do that and never had problems, I have a very big Refugium of 300 liters with 50 kg of live rock, about 200 more kg within the reef, and every 3 months I have a new inoculation of bacteria using a bit of sand collected in the sea, put some 50 grams of sand.
well put new colonies of bacteria within the reef
this week I went diving and found this cologne for zoanthus
also find this kind of crab Mithraculus that had not seen and brought to see if it is reef safe
collect some algae to eat and tangs together with them came this nudibranquio that is feeding on sponges orangeade