I have 3 small telescopes in a 30 Litre tank.
For the last few weeks I have an Algeae problem. My lids underside is turning green, I am constantly cleaning the glass to get rid of green Algae and my bubble stone is turning really brown despite cleaning.
I have also changed 25 - 50% of the water on a number of occasions recently. Othe parameters are :-
Ph 7.8
Ammonia 0
Nitrite 0 - 0.25
Nitrate 4.0
I dont think the Nitrate itself is harmful but the tank does look messy after a few days... any ideas?
I did use a Nitrazorb bag for my Nitrite spike but the massive tea bag in the tank didnt look too great.
Thanks Peeeps