Advice column all about aquariums by J. Hotelling
Date: Thu, 7 Sep 2000 22:43:26 -0400
Hello, how are you? I have a 29gal tank. I am having a problem with my
water constantly turning green. I can have crystal clear water one day and
have green the next. Any tips or advise for me. I miss my crystal clear
tank, and am thinking about shutting it down. Please help.
I am well; thank you for asking. Green water is generally caused by some
excess of phosphates in the system. Phosphates are produced by some excess
of light or nutrients to the system.
1) Check your lighting. Make sure it is adequate, but not excessive. If
you are not sure, try leaving it off for most of the day. Turn it on only
for a few hours in the evening. Look for any direct light sources as well,
and remove them from the equation.
2) Check your nitrates using a test kit. They should be within normal
range. Excess nitrates may produce green water.
3) You may want to purchase a phosphate test kit (around $10) to test your
4) Reduce your feeding and look for excess food on the substrate (gravel.)
Whatever you do, dont give up. Too many hobbyists give up too easily.
There are many reasons for this, but we highly recommend reading and using
the internet as a valuable resource for help. Feel free to ask other
questions of visit our site and send our salespeople a question. The past
thing I personally want to see is a hobbyist lost to a minor complication.
Fishkeeping is a wonderfully enjoyable hobby.
I hope this helps you out and look forward to hearing the results.
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