I'm now back at work so no can do.
here's a representation

Pook – Member

GOLDFISH UPDATE

he's upright now.

Yay, has the STW massive saved the life of Pook's goldfish, result!

Can we now help you choose a name for your goldfish?

I see he's still a bit off colour tho!

No, he's already called Jamie. Don't ask. i didn't name the thing, just adopted it. But we've become close over the years.

1) how long you had the pump ?
does it have a carbon cartridge filter ?
have you taken the carbon filter out and replaced it with a new one ? this should be done according to the manufactures guidance ( mine is 3 – 4 weeks)

2) Is there a sponge in the bottom of the pump ?
If so this has to be cleaned every 3 – 4 weeks by removing it and washing it out in aquarium water. (not tap water and no cleaning agents)

3) you need to remove 20% of the tank water every 3 days – replace it with fresh tap water and a small amount of de-chlorinator ( put the de-clorinater into the new water before putting water into tank)

4) if the pump is old and the carbon filter needs to be replaced then when this is done the pump will become a mechanical pump only until the carbon cartridge starts working correctly – put some ammonia blocker in the tank (only need a tiny amount – dont buy the big bottle)