MichaelJ
Member
Thank you Michael. Yes, the tank is three weeks old but I replaced the filter just the other day so should I reset the ‘clock’?
I suppose you mean the filter material ? Either way, no, that wont be necessary in my opinion. You are running a relatively densely planted tank with fast growing plants and thats a very, very good thing when starting up 🏆... The filter, as far as I am concerned merely serves a mechanical purpose and to provide flow (nutrient distribution) around the tank - which is crucial... In a healthy densely planted tank, the biological filtration is by and large provided by the plants and the substrate. Not everyone here will agree with me 100% (I've become somewhat of a doctrinaire on this lol...) and it may not hold entirely true in a totally new and relatively sterile tank, but for sure it does when the tank matures.
Yes being 3 weeks in already, do 50% twice a week for a couple of more weeks would be my recommendation.Ok, I’ll do 50% water changes twice a week. I have bought some Seachem Prime and I did 50% change yesterday and found it was usable within minutes as you say. As next week will be the fourth week, shall I resort to just once a week water change after that or keep doing it twice a week until things settle down.
Just add the recommended amount of Premium after each of the initial 50% WC - 3 pumps (6 ml) per 50L (I believe your tank is 60 L, so you can add an extra pump every other time you do WC, but of course the best gauge is to watch the plants and adjust if you see signs of deficiencies. In a low-tech tank such as yours it wont be too critical whether you're slightly below or above.I do have the Tropica Premium - how much should I be using in terms of ml and frequency?
With regards to the phosphate level, is this something I need to address?
EDIT: Just saw your post above about your reading from the Salifert test that says its zero... Well, I wouldn't worry too much about it - it's unlikely to be absolute zero. Plants do not need much - but they need some for sure - I run my tanks at around 0.25ppm of PO4 (0.08 ppm of P) but they also get some P from food, plant and fish waste.
Cheers,
Michael
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