BarryH
Member
For the last couple of months, every time I do a weekly 50% water change in my Harlequin and Shrimp tank I get what looks like a bacterial bloom. This only last for roughly 24 hours and then clears up again. This tank is one of the earlier Juwel 100 litre tanks with their usual internal filter and I change the fine white filter at the same time. It only seems to happen on this tank, other tanks with double sponge filters and the Aquael Mini Pat powerhead never do this.
The same also happens in the same tank when I trim the roots of the floating plants and top up with less than one litre of water.
Any help or advice would be greatly appreciated.
The same also happens in the same tank when I trim the roots of the floating plants and top up with less than one litre of water.
Any help or advice would be greatly appreciated.