Can't seem to keep any inverts alive

JamesJR

New member
I have been having some strange problems with my tank for the past 3-4 months and I am a little bit perplexed as I have been in the hobby for years and someone with my experience should not have the difficulty I have had. My problem is that for some reason my tank nearly crashed in early february and I have lost all of my snails, crabs, shrimps and most other mobile inverts including the bristleworms. I was able to save all of the fish yet for some reason I still cannot keep snails alive! Before I started graduate school last august this tank had sps corals and anemoenes all using the same equipment that I have except I changed the lights and got rid of most of my corals. But now when I try and add snails they move around for about 10 minutes and then stop moving altogether.

My tank is a 60 gallon and has been running for about 2 years now. I have have a sump running on a mag 9.5, an asm g3 skimmer and two hydor korallia 4's. I am using 440 watts of VHO and I run a filter sock and use lots of activated carbon (about 2-3 cups changed weekly). My tank is bare-bottumed and I have around 40-50 pounds of DIY live rock and about 10 pounds of rock aquired from a previously set up tank. This rock was completely covered in coralline algae, sponges and had lots of halimeda growing until this time. I have a pair of ocellaris clowns, 2 chromis and a coral beauty angel and they are all doing just fine.

Since my tank is a converted sps to fish only tank I switched to using treated tap water a for a while and that worked fine for months until february. I have since switched back to RO/DI water and use it exclussively. My water is changed biweekly on about a 10% change using IO. My tests are good on Ammonia, nitrate, nitrite and pH. I no longer regularly test for calcium, magnesium or alkalinity as I am no longer dosing these supplements.

I am just kind of weirded out by all of this.
 
copper poisoning?

If it wasnt accidentally introduced by a med or something maybe the skimmer or hydor's motors went bad and leeched some copper into the system.

that'd explain why the fish are fine
 
I have been speculating about that. I doubt it is the pumps that could be the culprit. I have been thinking it has been over the past month is
that they have replaced lots of the plumbing in my apartment and that could be the reason but the tapwater here is pretty bad.
 
Indeed, and judging by the fact that you said you had halimeda as well until this happened, it would seem a safe bet to say it's copper related. It's well known for it's detriment to inverts, and use in algacides.
 
Yeah, both my hydrometers were consistent with a refractomer so the salinity is not off. I had speculated that and I have run a few tests. Copper is through the roof. I am running some heavy metal resins now. Looks like it will be a while until any inverts.
 
Back
Top