Total Rescape of my pride and joy! More pics to come of my latest additons. - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 11 Old 11-07-2010, 04:30 PM
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Originally Posted by FishMad View Post
WOW! Thanks for that video link, what a wonderful insight into the natural habitat of these gorgeous fish. I could sit and watch a documentary like that for hours.

I do have the Banana Lilly which has so far sent 7 lillies to the surface. I have noticed that it has reduced the light quite significantly down that end of the tank.

I find that my Angels are fine, they spend their time hanging out with the Silver Dollars and are very friendly and curious when I am fiddling with the tank.

Ok, so I can get Tetras without them being eaten. As they are so small I was thinking of a school of between 20 and 30. This wouldn't overload the tank bioload would it? I have a Eheim Classic 600 Canister filter running which keeps the tank crystal clear.

On another note, what would be the reason for Nitrate to get a little high? I have noticed that my Nitrate is pushing above the ideal maximum level of 40ppm. This was the case even straight after a water change. The fish are not showing any signs of distress, the tank is clear of waste but I am currently treating with Stress Guard as one of my Silver Dollars has an injury on his upper lip.

0nce again, thank you so much for your extensive knowledge Byron, it is so good to know that the advice you give is not based on guessing but, is experience and fact. Thanks
First on the silver dollars, I would recommend getting rid of them (fish store exchange, another hobbyist). They will eat fine plants, and angels should be in a planted tank. Plus, they are not really compatible species. As they both grow, issues can develop.

On the filter, these fish prefer quiet water with little flow. Make sure you direct the filter outflow against the end wall, and have it less rather than more. Depends upon your tank and everything, but a minimal flow is better with these sedate fish. If you noticed in that video, the water is quiet still and the fish remain along the banks (the slowest flow in streams) among the branches which further breaks the water movement.

On the nitrates, they may do no harm at 40ppm to most fish, but they should be kept at 20ppm or lower. Plants will achieve this f the fish load is in balance. Regular (weekly) partial water changes also work to maintain stability in nitrates and other issues. 50% weekly will do no harm. Nitrate at 40ppm after a water change is not good. Have you tested the tap water for nitrate? Some does contain nitrates. And if you use the API liquid nitrate test, shake regent #2 for 2+ minutes, not just 30 seconds as in the instructions; otherwise you may well have inaccurate and high readings.


Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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