very strange Neil!

to have so many heaters not working right makes me ask what thermometer you are using???are you using the stick on strip thermometer? i dont rate these and have the old glass type in all my tanks. wilkinsons do them for about 99p


Im running a 150 litre tank on a single 200 wat with no problems .

another thing is are you pre heating your replacement water at waterchanges ?

what fish has this whitespot?

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