It is over week and yesterday I did another 20% water change. The level of ammonium is going down on its own, it is around 0.2-0.3 level back from 0.5 two days ago. Nitrite can be barely seen, the value is maybe a little above 0 and nitrate is almost not traceable. This leads after a week to few issues, one of them is actually Nitrogen deficiency in my plants, I can easily see that the leaves are getting more yellow than green, especially visible on my larger leaves. This can by the way be other deficiency like Potassium. Potassium is important for plants and highly overlooked. I'll monitor the nitrate level and will try to add some potassium (K) to check if this will help with nutrients transport in plants. In the pictures you can also see a visible sign of diatoms having some good time. Also some other type of algae is popping out, which in same cases in normal in some shows some improper balance.At this stage I'll not worry much and wait to see where it will go. Removal of diatoms is actually important as they feed on silica which is hard to remove other than with water changes and removal of diatoms. Even if you have fish that eat diatoms, they will not digest silica and will put it back to the task with their waste so that new diatoms will have more to eat. I plan to add some hardy algae eaters for some time until water will be good enough for shrimps.
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