cause of death

Hello everyone, I still very new to fish keeping and reef tanks in general. I've had my tank since for almost a year. I had my Midas Blenny for 5 months and out of nowhere it started acting strange. Perched in the corner of the tank using its fins to hold itself about halfway up the tank...

Hello, I have a 7 month old 40gal tank with good parameters. Last week I purchased a Sea hare, a cleaner shrimp, and an arrow crab. All 3 died within like 3 days and I'm not sure why. Current tank inhabitants: Haitian Anemone, 1 banggai cardinalfish, 3 blue legged hermit crabs, 1 turbo...

Hi all, Unfortunately my 4 day old Blue star was found dead stuck head first in some rocks this morning. I had to use some long tweezers and some force to get it out. Wanted to get some opinions on what could have happened. All other fish in the tank are healthy and eating voraciously. The...

Hi everyone I have been looking after my fish and coral for about 18 months now. I have a 180 gallon 6 foot aquarium with mostly lps and softies, I tried some sps but only the montipora has been growing and doing well. After this time I would imagine my tank should be stable enough that...

Hey another question, definitely have an emergency on my hands and need to know what to do ASAP. As much input as I can get would be appreciated. I have a 29 gallon tank about 3 months old housing two ocellaris clowns and a bunch of mushroom corals. 3 days ago we added some new tank mates 4...