Frequently asked questions

Freshwater Care

What can I do about elevated nitrite levels (nitrite peak)?

Hello, using sera toxivec plus very generuous partial water changes - however without filter "cleaning" - are recommended as immediate measures. The so-called nitrite peak will then...

Freshwater Fish

How large do Coolie Loaches and Dwarf Loaches grow, and how many should I keep?

Hello, Coolie Loaches usually grow to about 10 - 12 cm (3.9 - 4.7 in.), single specimens occasionally grow slightly longer.If "Dwarf Loaches" refers to Yasuhikotakia (formerly Botia...

Freshwater Fish

How large do Clown Loaches grow?

Hello, clown loaches grow to considerably (!) more than 16 cm also in an aquarium, provided they are kept in an appropriate tank. The small clown loaches sold are juveniles (not to...

Freshwater Care

How can I lower the iron level?

Hello, this is indeed the correct way if the high iron level is caused by fertilizing too much. You may simply carry out a water change for lowering the level immediately. In case...

Freshwater Care

How can I lower the KH value?

Hello, this is possible with pH lowering products such as sera pH/KH-minus, but also by sera super peat (blackpeat granulate). These products are necessarily based on acids...

Freshwater Care

How can I lower the pH value (South American and Southeast Asian fish)?

Hello, Concerning "pH value":You can lower the pH value with sera super peat (blackpeat granulate) or sera pH/KH-minus.A pH value of 8 is indeed too high for the fish! A pH value...

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