Hugo Kamishi Car­bon fil­ter pad

Practical Fishkeeping (UK) - - Pfknewgear -

Okay, we know what car­bon does, right? Car­bon acts as a chem­i­cal fil­ter, ad­sorb­ing cer­tain pol­lu­tants from wa­ter, such as cer­tain heavy met­als, tan­nins and phe­nols (those things that even­tu­ally ‘yel­low’ your wa­ter), but doesn’t touch am­mo­nia, ni­trite or ni­trate — and it leaves wa­ter chem­istry alone. No hard­ness swings from this stuff.

Fil­ter car­bon usu­ally comes in a cou­ple of forms. One is loose, like gravel, and you have to bag it up for use in an ex­ter­nal (or some­times in­ter­nal) can­is­ter fil­ter. The other main form is the car­bon pad — a car­bon im­preg­nated foam fil­ter.

The sec­ond form is where the Hugo Kamishi pad comes in to play. I’m not go­ing to try hid­ing the fact — a lot of ded­i­cated car­bon pads for can­is­ters are ex­pen­sive. Like silly ex­pen­sive. When I’m fork­ing out over £10 for three mea­gre strips of black foam, I feel put out.

The Hugo pad is a size­able slab of 20 x 20cm, around 12mm thick. It doesn’t have any holes, but if you’re not after too tech­ni­cal a shape, you can eas­ily cut a piece out to fit most fil­ters. Get sharp scis­sors though (the kind you’d want if you were fight­ing for your life against a bear) be­cause the fi­bres put up a hell of a push­back.

Like all car­bon fil­ters, you need to swap it every 4 to 6 weeks (oth­er­wise it can, in­di­rectly, end up dump­ing some of the col­lected waste back into the tank) and how long a pad lasts de­pends en­tirely on how big your ex­ist­ing foams are. Note that the den­sity may dif­fer from the brand you’re cur­rently us­ing, which could po­ten­tially clog more slowly or quickly, and could af­fect flow. Mon­i­tor closely if you’re swap­ping over for the first time.

The big­gest ben­e­fit is the price. At well un­der £5 for a sheet, you can af­ford to stock up for the year. NATHAN HILL

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.