Thread: Toxic Algae
01-18-2013, 04:07 PM #1Junior Member Guppy
- Join Date
- Jul 2012
I have an established, very stable planted tank (120 gal). PH is controlled automatically @ 6.9, very low Nitrate, essentially o ppm Nitirite, Ammonia, Copper etc. Very high water quality. I have repeatedly attempted to add Amano and Cherry shrimp for alagae control with 100% death rate within 24 hrs. Here is what happens: 1) I carefully drip in shrimp for 2 hrs or so, 2) Add them gently to tank 3) Shrimp are active and immediately begin feeding on algae. 4) After several hours, shrimp stop moving and quickly die. I have exaustively eliminated any water quality issues. It appears that something they are feeding on is toxic. I do not appear to have any blue green algae (cyanobacteria). Shrimp are appear to be feeding on normal green algae on plants and glass walls. I'm totally baffled and a bit frustrated as I would really like to have some Amanos to help with algae. Any thoughts?
01-18-2013, 04:19 PM #2
the first thing that comes to mind is that copper may have been used in the tank previouslyWater changes are key to healthy fish!
01-18-2013, 04:24 PM #3
and you mention that you have algae problems. Are you/have you dose anything that may contain copper? Fertilizers?Water changes are key to healthy fish!
01-18-2013, 04:50 PM #4Originally Posted by BryanC46 gal fw tank with black skirt tetras, neon tetras, spotted cory catfish, cherry barbs, guppies, snails & 4 amano shrimp - plastic & live plants
5 gal QT with green corys & 2 guppies
01-18-2013, 05:00 PM #5
01-18-2013, 05:41 PM #6Member Oscar
- Join Date
- Nov 2008
PH controller implies CO2 injection to me. In my experience, thats almost instant death to shrimp.
01-18-2013, 05:49 PM #7
In addition to the questions and comments already made, I would also suggest larger water changes to help lower your nutrients in the water
If you are having a bad algae problem then you can not trust your nitrate test results to be accurate. Algae will consume nitrates and phosphates almost instantly, too fast for you to get a true sample for testing.If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
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