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Kevin262
The actual problem is that the pink Xenia is not growing. It has been in the same condition for the past six months. For this reason, I am afraid to introduce Zoanthids. Maybe it is not getting enough food? A fine-porous sponge was placed at the outlet of the sump until yesterday. Perhaps it was filtering the zooxanthellae, and the Xenia is starving? The lighting is 80W CRI in total, currently running at 50W (white, blue, royal 14) 200L+50 sump, launched in April 2014, Tim's salt 1.025, live rock 3kg (I know it's not enough) and 3kg of dry reef rock. Additionally, 2kg of activated coral rubble from an active aquarium is in the sump. In general, I need any advice regarding my aquarium. I am grateful in advance. According to the Pterovian tests, nitrates an