Join Date: Oct 2014
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Re: QUESTION about algae
Back to HLLE (not HELL, of course), see my previous post:
Let's continue on the difficult subject of HLLE, from which both I and the fish suffered, like most new hobbyists might have experienced, you see yours used to be pretty angels became not so pretty day by day and in the end I may have to do the last thing: euthanasia, and luckily, I found a medical solution, 0.1% metronidazole mixed in dried oyster balls, which my then 4-years old passer angel gladly swallowed daily. This medication stop the progression of lateral line erosion but did not heal the wounds. The passer was in good shape otherwise, in my sterile tank (no UV but with 0.05 ppm copper, measured by atomic absorption spectroscopy) for 6 years and was traded with fish food due to my relocation 14 years ago.
The fact that HLLE can be stopped by an antibiotics indicates that it's a bacterial infection and the use of trace Cu in the tank to keep algae on control may have exacerbated the problem because there would be no vitamin C from algae to supplement the need for the fish. 6 months after I moved, I decided to experiment with planted non-sterile marine tank, initially with ozone but was then replaced with UV couples years later as the bacterial control method. But once in a while I still had cyan bateria problem and fortunately erythromycin ascorbate came to the resue and problem solved.
Meaning while I formulated a water conditioning additive that allows incidental invertebrates (small unidentified nitrate-hardy sponges, bristle worms and rock anemone) to grow in the tank and this is what I believe my moorish idol can survive for more than two years because she kept picking on those invertebrates. Both clown trigger and blueface love to eat small bristle worms and young sprout of Caulepa
prolifera. Under these environments you will never need metronidazole because HLLE is not a natrual disease and will not occur in my non-sterile tank.
By the way, you don't need an advanced degree to enjoy a beautiful fish tank and certainly you don't need an AA spectrometer to test your water but you need to learn from past failures(others, not yours) to be a responsible pet owner.
Success is measured by years, not by months.