Tank Eheim Vivaline 240 l, heater Hydor ETH 300, filter Eheim professionel 3 350

Plan: mangrove river estuary, SG 1.002


2 Toxotes Microlepis (Archerfish), 6 Melanotaenia Boesemani (Rainbowfish), Neritina Natalensis (Zebra Nerite), Clithon Corona

Mangrove environments around the world

Sunday 4 March 2012

Other guests

The Neritinae have layed eggs: a number of white, sesam-seed-like spots scattered in sheltered places on the decors. The water is not salty enough to make them survive, but perhaps I'll be able to witness the hatching.

The archers are doing fine, one has clearly become the Alpha guy, harrassing the others, but strictly at eating time. For the rest of the time they do hang around all together quite nicely. When the food is crickets, however, it's just impossible for the others to even get close enough to the only opening in the lid to try their luck in shooting: Alpha sits there and scares them off. And I'm too slow to get more than one cricket at a time in the tank, so last time Alpha got 4 out of 4 of them. I'll have to try some other insects, such as flies, that I can introduce in a significant number, so that the hunt will be distributed among all three archers.

The glass fishes are quietly living in the little home. I can't say they have grown a bit since I got them, but seeing them every day, it's probably hard to appreciate that.

The Java moss has almost succumbed to some hair/thread algae. The Hornwort, too, keeps getting covered with them. The amazing thing is that the plants is the only spot of the entire tank where I get algae: everything else is clear! With the exception of the diatoms, that keep affecting the substrate only, now: the Nerites are doing a great job, and their breeding is evidence of the amount of food they have around.

OK, time for the weekly water change...