darksun92 Posted July 2, 2020 Share Posted July 2, 2020 Hi! Today almost all my hermit crabs suddenly die I had 5 and only 1 is alive and is not eating and mostly doesn't move also some acros started to bleach and some montis don't show polyp extension my params are Salinity 1.025/34ppt Temp. 28/29.5 Kh 8.3 Ca 420 Mg 1350 No3 20 Po4 0.01/0.05 I use water for human consumption with 12TDS feed with mysis shrimp, thanks in advance! Quote Link to comment
Tamberav Posted July 2, 2020 Share Posted July 2, 2020 Where is the water from? I would probably run a little carbon to start. Quote Link to comment
darksun92 Posted July 2, 2020 Author Share Posted July 2, 2020 5 minutes ago, Tamberav said: Where is the water from? I would probably run a little carbon to start. Is water from a well know brand in my country but is for human consumption not RO/DI Quote Link to comment
Elizabeth94 Posted July 2, 2020 Share Posted July 2, 2020 How long have you kept these hermits and acros before they started doing this? Your parameters don’t look bad. Im guessing some sort of containment got in your tank. + 1 on carbon. Quote Link to comment
darksun92 Posted July 2, 2020 Author Share Posted July 2, 2020 20 minutes ago, Elizabeth94 said: How long have you kept these hermits and acros before they started doing this? Your parameters don’t look bad. Im guessing some sort of containment got in your tank. + 1 on carbon. I added the hermits 5 months ago and the acros 1 month ago and just today happened that. I'll take some photos on the acros this ones are bleaching or loosing tissue Goniopora not extending but this ones are doing great This is bleaching too Quote Link to comment
Tamberav Posted July 3, 2020 Share Posted July 3, 2020 When was the last water change? Recently at all? Any recent changes at all? Quote Link to comment
MainelyReefer Posted July 3, 2020 Share Posted July 3, 2020 85f sounds too hot to me 2 Quote Link to comment
MainelyReefer Posted July 3, 2020 Share Posted July 3, 2020 Low TDS water is typically aggressive in nature, perhaps before it is bottled it travels through a copper distribution system(piping). If there is a trace amount of copper in your top off perhaps it built up overtime. Or you got a bad batch as it seems like a sudden event, so if it is contamination it might be more likely it was a singular recent addition that was polluted. Can you test for copper? Any shrimps or other inverts surviving? In the US you can legally have up to 1.3 mg/l in a water supply. I’m thinking inverts die at lower concentrations than that 1 Quote Link to comment
Elizabeth94 Posted July 3, 2020 Share Posted July 3, 2020 1 hour ago, GraniteReefer said: 85f sounds too hot to me Wow. Im a dumb American and didn’t even notice that since its not in fahrenheit. 1 Quote Link to comment
Tamberav Posted July 3, 2020 Share Posted July 3, 2020 36 minutes ago, Elizabeth94 said: Wow. Im a dumb American and didn’t even notice that since its not in fahrenheit. haha same! 1 Quote Link to comment
darksun92 Posted July 3, 2020 Author Share Posted July 3, 2020 2 hours ago, Tamberav said: When was the last water change? Recently at all? Any recent changes at all? Not really, just turn down a bit my prime hd in some colors. my last WC was one week ago. 2 hours ago, GraniteReefer said: Low TDS water is typically aggressive in nature, perhaps before it is bottled it travels through a copper distribution system(piping). If there is a trace amount of copper in your top off perhaps it built up overtime. Or you got a bad batch as it seems like a sudden event, so if it is contamination it might be more likely it was a singular recent addition that was polluted. Can you test for copper? Any shrimps or other inverts surviving? In the US you can legally have up to 1.3 mg/l in a water supply. I’m thinking inverts die at lower concentrations than that Yes my temp is a bit high but my tank is just 31L and chillers are made for 100L or more and are very expensive, I don’t know what to do for it. only one turbo snail survived and one hermit crab, so the copper can be the reason to bleach corals too? once I read that marine pure balls dissolve some amount of aluminum or copper I don’t remember what exactly was, do you now something about it? Quote Link to comment
MainelyReefer Posted July 3, 2020 Share Posted July 3, 2020 16 minutes ago, darksun92 said: I don’t know what to do for it. A fan for evaporative cooling, they even sell cheap aquarium specific fans Quote Link to comment
darksun92 Posted July 3, 2020 Author Share Posted July 3, 2020 1 hour ago, GraniteReefer said: A fan for evaporative cooling, they even sell cheap aquarium specific fans I have a 6” fan for maintain that temp 28/29 without it it would rise to 32 or more Quote Link to comment
Tired Posted July 4, 2020 Share Posted July 4, 2020 More fans could help, or a bigger one. Quote Link to comment
darksun92 Posted July 5, 2020 Author Share Posted July 5, 2020 20 hours ago, Tired said: More fans could help, or a bigger one. I think I’m going to buy another one Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.