new fish dying

i’ve had my royal gramma 2 weeks now and he has been completely fine the whole time until i did a water change 2 days ago ( the first one i’ve done with him in the tank ). He went and hid when i was doing it and i haven’t seen him since for 2 days. i have a look this morning and he’s laying...

Please help. A few months back a friend of mine started his first marine fish, got it cycled and stable for for about 6/8 weeks. Had 2 fish in the tank and everything was fine, he recently purchased a mushroom from another friend and now one of the fish is struggling and levels have completely...

I’ve recently purchased a yellow coris wrasse from marine collectors and followed their acclamation protocol and noticed that the fish was floating upside down and not moving much but I figured it was just stressed from shipping so I put it in my tank with my other fish which are all either from...

Hi, I have a 60l saltwater aquarium with one shrimp, two snails and two clownfish. In the past, I had two other clownfish but they died after a month of adding them to the tank. When I first got them I noticed white spots on their fins. I didn’t know what ich was, so I ignored it, thinking it...

Hello everyone, I have a 20 gallon aio which currently has 2 clown fish, one astrea snail and one fighting conch. Recently (a month ago) I changed the powerhead to a MP10 from Maxspect Gyre. A few days after the introduction, my tailspot blenny died. I have tried introducing 2 fish (white lined...